1
This catalog covers the Amphenol ®/Matrix ® MIL-C-
83723, Series III Connectors. These connectors incor-
porate crimp rear release contacts. There is great
diversity within this cylindrical family, with the following
options available:
• Three coupling styles - bayonet or threaded plugs
and receptacles, and quick-disconnect plugs with or
without lanyards
• Aluminum or passivated stainless steel versions
• A wide variety of mounting configurations
• Can be ordered by military or equivalent Amphenol/
Matrix proprietary part numbers.
The Matrix ® connectors covered in this catalog
broaden the miniature cylindrical family offered by
Amphenol. Equivalent MIL-C-83723, Series III con-
nectors can be ordered in the Amphenol®/Pyle® ver-
sions. Within the Pyle product family of MIL-C-83723
are additional options such as high temperature fire-
wall versions and hermetic styles. See page 22 for
more information on the Amphenol/Pyle versions of
MIL-C-83723, Series III connectors.
Should more information be required concerning the
connectors covered in this publication, or if special
application needs arise, please contact:
Amphenol Corporation
Amphenol Aerospace
40-60 Delaware Avenue
Sidney, New York 13838-1395
Telephone 607-563-5011
Fax: 607-563-5157
Web site: www.Amphenol-Aerospace.com
TABLE OF CONTENTS
Amphenol ®/Matrix ® MIL-C-83723, Series III
Connectors
Introduction, Table of Contents . . . . . . . . . . . . . . . . . .1
General Description, Features and Benefits. . . . . .2, 3
Class Descriptions,
Performance Specifications . . . . . . . . . . . . . . . . . . . .4
Quick Reference Chart . . . . . . . . . . . . . . . . . . . . . . . .5
Bayonet Coupling
Shell Styles, Dimensional Data:
Wall Mounting Receptacle . . . . . . . . . . . . . . . . . . .6
Jam Nut Receptacle. . . . . . . . . . . . . . . . . . . . . . . .7
Straight Plug,
Straight Plug with RFI Grounding Fingers . . . . . . .8
How to Order Bayonet Coupling Style . . . . . . . . . . . .9
Threaded Coupling
Shell Styles, Dimensional Data
Wall Mounting Receptacle . . . . . . . . . . . . . . . . . .10
Jam Nut Receptacle. . . . . . . . . . . . . . . . . . . . . . .11
Straight Plug,
Straight Plug, with RFI Grounding Fingers. . . . . .12
Straight Plug, Self-Locking. . . . . . . . . . . . . . . . . .13
Quick-Disconnect Coupling Plug
Dimensional Data
Straight Plug with/without Lanyards . . . . . . . . . . .14
How to Order Threaded and Quick-Disconnect
Coupling Styles. . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Insert Arrangement Chart. . . . . . . . . . . . . . . . . . . . .16
Alternate Positioning. . . . . . . . . . . . . . . . . . . . . . . . .17
Insert Arrangement Patterns . . . . . . . . . . . . . . 18 - 20
Contact Information, Sealing Plugs,
Crimping and Insertion/Removal Tools . . . . . . . . . . .21
Additional MIL-C-83723, Series III
Miniature Cylindrical Connectors
offered by Amphenol. . . . . . . . . . . . . . . . . . . . . . . . .22
Sales Office and Distributor Listing
Amphenol Aerospace is a Certified ISO 9001 Manufacturer.
2
Amphenol broadens their Miniature Cylindrical
Family of Connectors with the addition of the
Matrix® Product line of MIL-C-83723, Series III
Connectors.
This series provides many choices within the
range of a medium sized, environmentally resis-
tant cylindrical connector. With three coupling
style choices - bayonet, threaded and quick-dis-
connect - the versatility of this family makes it
increasingly popular for panel mount, box mount
and line-to-line applications in aircraft. For general
duty environmentally resistant requirements, this
family of connectors provides a wide range of
interconnection solutions.
Amphenol®/Matrix® MIL-C-83723, Series III
Connector Design Characteristics
• Recommended operating voltage to 600 VAC
(RMS) at sea level
• Complete environmental sealing includes indi-
vidual contact seals and a silicone elastomer
interfacial seal with raised barriers around each
pin, a shell-to-shell seal and an insert-to-shell
seal. Sealing over a wide range of wire diame-
ters is assured by a triple-webbed grommet
design
• Captive coupling nut prevents tampering, while
a reduced coupling ring ramp allows easier
mating
• Incorporates crimp rear release contacts in
sizes 12, 16 and 20; contact arrangements
accept 2 to 61 circuits
• Contacts conform to MIL-C-39029 and use
standard qualified rear-release type plastic
tools
• Insertion and removal of contacts from the rear
of the connector assures no damage to the
front that might affect the sealing characteris-
tics
• Grommets are constructed of tear-resistant
elastomer and experience no degradation
when exposed to a broad range of fluids
• Closed entry socket side of the insert is
designed with a lead-in chamfer and a hard
face that will accept a pin contact bent within
pre-established limits
BAYONET COUPLING CONNECTORS
• Quick positive coupling assured by 3 point bayonet coupling
system; visual confirmation of complete coupling
• Five key/keyway design eliminates mismating
• Shell sizes 8 – 24 in the following mounting styles:
• wall mounting receptacle
• jam nut receptacle
• straight plug, straight plug with RFI grounding (provides
EMI shielding)
• MS and Proprietary versions available
• Alternate positioning available
• Intermateable with most MIL-C-26500 bayonet coupling
connectors
• Aluminum shells with black anodized, cadmium or electroless
nickel finish options; also shells of passivated stainless steel are
available.
THREADED COUPLING CONNECTORS
• Threaded coupling offers greater resistance to decoupling with
a visual full mating indicator band on the shell
• Shell sizes 8 – 28 in the following mounting styles:
• wall mounting receptacle
• jam nut receptacle
• straight plug, straight plug with RFI grounding (provides EMI
shielding), and straight plug with a self-locking clutch plate
• MS and Proprietary versions available
• Alternate positioning available
• Intermateable with most MIL-C-26500 threaded coupling
connectors
• Aluminum shells with black anodized, cadmium or electroless
nickel finish options; also shells of passivated stainless steel are
available.
QUICK-DISCONNECT COUPLING CONNECTORS
• Push-pull, quick-disconnect coupling is available in a straight
plug, that can be ordered with or without a lanyard release
mechanism
Amphenol /Matrix Miniature Cylindrical
MIL-C-83723, Series III Connectors
general description, features and benefits
® ®
3
M83723/82 & 83
wall mounting receptacle
M83723/84 & 85
jam nut receptacle
M83723/86 & 87
straight plug
M83723/91 & 92
straight plug,
RFI grounding
M83723/95 & 96
straight plug, self-locking
M83723/66 & 67
quick disconnect plug
M83723/68 & 69
quick disconnect plug
with lanyard
Amphenol /Matrix Miniature Cylindrical
MIL-C-83723, Series III Connectors
wide variety of coupling styles and customer options
® ®
BAYONET COUPLING CONNECTORS
M83723/71 & 72
wall mounting receptacle
M83723/73 & 74
jam nut receptacle
QUICK-DISCONNECT COUPLING
CONNECTORS
M83723/75 & 76
straight plug
M83723/77 & 78
straight plug,
RFI grounding
THREADED COUPLING CONNECTORS
4
Amphenol /Matrix Miniature Cylindrical
MIL-C-83723, Series III Connectors
class descriptions, performance specifications
® ®
CLASS DESCRIPTIONS
For Classes K, S and N, contact Amphenol, Sidney, NY for information
on the Amphenol/Pyle high temperature versions of MIL-C-83723, Series III.
Military
MIL-C-83723, Series III
Amphenol/Matrix
Proprietary MB Series
Connector
Style Description
Class A Class A Bayonet, Threaded or
Quick-Disconnect
Aluminum shell, black non-conductive anodize finish,
fluid resistant
Class R Class R Bayonet, Threaded or
Quick-Disconnect
Aluminum shell, electroless nickel finish, fluid resistant
Class G Class G Bayonet, Threaded or
Quick-Disconnect
Stainless steel shell, passivated, fluid resistant
Class W Class W Bayonet, Threaded or
Quick-Disconnect
Aluminum shell, cadmium olive drab finish, corrosion/fluid
resistant
PERFORMANCE SPECIFICATIONS
** Service Rating I is comparable to MS rating A. Connectors rated Service Rating I will provide a minimum flashover voltage
at sea level of 2,000 volts AC (RMS).
Please note that the electrical data given is not an establishment of electrical safety factors. This is left entirely in the
designer’s hands as he can best determine which peak voltage, switching surges, transients, etc. can be expected in a partic-
ular circuit.
SERVICE RATINGS**
Service
Rating
Recommended
Operating AC Voltage
at Sea Level
Test Voltage AC (RMS), 60 cps
Sea Level 50,000 ft. 70,000 ft. 110,000 ft.
I 600 1,500 500 375 200
OPERATING TEMPERATURE RANGE
–65°C (–85°F) to 200°C (392°F)
ENVIRONMENTAL SEAL
Wired, mated connectors with the specified accessory
attached will meet the altitude immersion test specified in
MIL-C-83723.
DURABILITY
Minimum of 500 mating cycles.
SHOCK AND VIBRATION REQUIREMENTS
Wired, mated connectors shall not be damaged, nor shall
there be a current interruption longer than one microsecond
when subjected to the following:
SHOCK:
One shock in each of the three major axes, having a 100g
peak for a six millisecond duration (half-sine pulse).
VIBRATION:
Twelve hours of random vibration having a range of 10 to
2,000 Hz with a .06 inch double amplitude (10-55 Hz) and a
20g peak level (55-2,000 Hz).
5
Amphenol /Matrix Miniature Cylindrical
MIL-C-83723, Series III Connectors
quick reference chart
The following is a quick reference chart for use in determining either the military designation or the proprietary Amphenol®/Matrix®
designation number for the MIL-C-83723 connectors covered in this catalog. See also the how to order pages for complete part num-
ber breakdowns. The how to order for bayonet connectors is shown on page 9, and the how to order for threaded and quick-discon-
nect type connectors is shown on page 15.
MIL-C-83723
Military Designation
Amphenol®/Matrix®
Proprietary
Designation
Contact
Type Connector Style
M83723/71 MB30( )S Socket Bayonet coupling, square flange wall mount receptacle
M83723/72 MB30( )P Pin Bayonet coupling, square flange wall mount receptacle
M83723/73 MB34( )S Socket Bayonet coupling, single hole mount jam nut receptacle
M83723/74 MB34( )P Pin Bayonet coupling, single hole mount jam nut receptacle
M83723/75 MB36( )S Socket Bayonet coupling, standard straight plug
M83723/76 MB36( )P Pin Bayonet coupling, standard straight plug
M83723/77 MB38( )S Socket Bayonet coupling, straight plug with RFI grounding fingers
M83723/78 MB38( )P Pin Bayonet coupling, straight plug with RFI grounding fingers
M83723/82 MT30( )S Socket Threaded couplling, square flange wall mount receptacle
M83723/83 MT30( )P Pin Threaded coupling, square flange wall mount receptacle
M83723/84 MT34( )S Socket Threaded coupling, single hole mount jam nut receptacle
M83723/85 MT34( )P Pin Threaded coupling, single hole mount jam nut receptacle
M83723/86 MT36( )S Socket Threaded coupling, standard straight plug
M83723/87 MT36( )P Pin Threaded coupling, standard straight plug
M83723/91 MT38( )S Socket Threaded coupling, straight plug with RFI grounding fingers
M83723/92 MT38( )P Pin Threaded coupling, straight plug with RFI grounding fingers
M83723/95 MT37( )S Socket Threaded coupling, straight plug with self-locking clutch plate
M83723/96 MT37( )P Pin Threaded coupling, straight plug with self-locking clutch plate
M83723/66 MQ36( )P Pin Quick-Disconnect push-pull coupling, straight plug without lanyard
M83723/67 MQ36( )S Socket Quick-Disconnect push-pull coupling, straight plug without lanyard
M83723/68 MQ35( )P Pin Quick-Disconnect push-pull coupling, straight plug with lanyard
M83723/69 MQ35( )S Socket Quick-Disconnect push-pull coupling, straight plug with lanyard
® ®
6
Receptacle Shell, Square Flange Wall Mount,
Bayonet Coupling
Military No. M83723/71 with socket contacts
M83723/72 with pin contacts
Amphenol/Matrix No. MB30
To complete order number see how to order for bayonet coupling connectors, page 9.
Shell
Size
A
±.005
B
±.005
C Dia.
±.005
D
Dia.
E
Dia.
H
Accessory Thread
Class 2A
8 .812 .594 .120 .536/.531 .305 .5000-20 UNF
10 .937 .719 .120 .659/.654 .405 .6250-24 UNEF
12 1.031 .812 .120 .829/.824 .531 .7500-20 UNEF
14 1.125 .906 .120 .898/.893 .665 .8750-20 UNEF
16 1.250 .969 .120 1.025/1.020 .790 1.0000-20 UNEF
18 1.343 1.062 .120 1.131/1.126 .869 1.0625-18 UNEF
20 1.437 1.156 .120 1.256/1.251 .994 1.1875-18 UNEF
22 1.562 1.250 .120 1.381/1.376 1.119 1.3125-18 UNEF
24 1.703 1.375 .149 1.506/1.501 1.244 1.4375-18 UNEF
Miniature Cylindrical MIL-C-83723, Series III
Bayonet Coupling
M83723/71 & 72
wall mounting receptacle
7
Receptacle Shell, Single Hole Mount Jam Nut,
Bayonet Coupling
Military No. M83723/73 with socket contacts
M83723/74 with pin contacts
Amphenol/Matrix No. MB34
To complete order number see how to order for bayonet coupling connectors, page 9.
Shell
Size A
B
Max.
C
Max.
D
Dia.
E Dia.
Max. F
H
Accessory Thread
Class 2A
J
Mounting Thread
Class 2A
8 .596/.590 .979 .829 .536/.531 .305 .137/.097 .5000-20 UNF .6250-20 UN
10 .721/.715 1.104 .954 .659/.654 .405 .137/.097 .6250-24 UNEF .7500-20 UNEF
12 .908/.902 1.291 1.142 .829/.824 .531 .113/.097 .7500-20 UNEF .9375-20 UNEF
14 .971/.965 1.391 1.205 .898/.893 .665 .137/.097 .8750-20 UNEF 1.0000-20 UNEF
16 1.096/1.090 1.516 1.329 1.025/1.020 .790 .137/.097 1.0000-20 UNEF 1.1250-20 UN
18 1.220/1.214 1.641 1.455 1.131/1.126 .869 .137/.097 1.0625-18 UNEF 1.2500-18 UNEF
20 1.345/1.339 1.766 1.579 1.256/1.251 .994 .137/.097 1.1875-18 UNEF 1.3750-18 UNEF
22 1.470/1.464 1.954 1.705 1.381/1.376 1.119 .169/.128 1.3125-18 UNEF 1.5000-20 UNEF
24 1.595/1.589 2.079 1.829 1.506/1.501 1.244 .168/.128 1.4375-18 UNEF 1.6250-18 UNEF
Miniature Cylindrical MIL-C-83723, Series III
Bayonet Coupling
M83723/73 & 74
jam nut receptacle
8
Plug Shell,
Bayonet Coupling
Military No.
M83723/75 with socket contacts
M83723/76 with pin contacts
Amphenol/Matrix No. MB36
Plug Shell, RFI Grounding,
Bayonet Coupling
Military No.
M83723/77 with socket contacts
M83723/78 with pin contacts
Amphenol/Matrix No. MB38
To complete order number see how to order, page 9.
Shell
Size
A Dia.
Max.
E Dia.
Max.
H
Accessory Thread
Class 2A
8 .776 .305 .5000-20 UNF
10 .906 .405 .6250-24 UNEF
12 1.078 .531 .7500-20 UNEF
14 1.141 .665 .8750-20 UNEF
16 1.266 .790 1.0000-20 UNEF
18 1.375 .869 1.0625-18 UNEF
20 1.510 .994 1.1875-18 UNEF
22 1.625 1.119 1.3125-18 UNEF
24 1.760 1.244 1.4375-18 UNEF
Miniature Cylindrical MIL-C-83723, Series III
Bayonet Coupling
M83723/75 & 76 straight plug
M83723/77 & 78 straight plug with RFI grounding
9
HOW TO ORDER BY MILITARY PART NUMBER
MIL-C-83723 SERIES III BAYONET COUPLING
CONNECTORS
M83723 /74 R12 03 7
1 23456
1. Connector Type
M83723 designates MIL-C-83723 Series III Connectors
2. Connector Style
(Refer to military specification slashsheet number.)
Bayonet coupling connectors are designated by
numbers /71-/78 as follows:
/71 wall mounting receptacle with socket contacts
/72 wall mounting receptacle with pin contacts
/73 jam nut receptacle with socket contacts
/74 jam nut receptacle with pin contacts
/75 standard straight plug with socket contacts
/76 standard straight plug with pin contacts
/77 straight plug with RFI grounding, socket contacts
/78 straight plug with RFI grounding, pin contacts
3. Service Class
A aluminum shell, black non-conductive anodize fin-
ish, fluid resistant
R aluminum shell, electroless nickel finish, fluid resis-
tant
G stainless steel shell, passivated, fluid resistant
W aluminum shell, cadmium olive drab finish,
corrosion/fluid resistant
Note: Consult Amphenol, Sidney, NY for hermetic classes H and
Y availability.
4., 5. Shell size (sizes 8-24 available), and insert arrangement -
See chart on page 16 and pattern drawings that follow.
6. Keying Positions (rotation of master key/keyway of shell)
Use N for normal.
Use 6, 7, 8, 9, or Y for alternate keying positions.
See page 17 for descriptions.
Clocking Positions (rotation of insert)
Use 1, 2, 3, 4, or 5 for alternate clocking positions.
See page 17 for descriptions.
Miniature Cylindrical MIL-C-83723, Series III
Bayonet Coupling
how to order
HOW TO ORDER BY PROPRIETARY PART NUMBER
MIL-C-83723 SERIES III BAYONET COUPLING
CONNECTORS
MB 34 R12 03 P 7 –***
12345678
1. Connector Type
MB designates Amphenol®/Matrix® Bayonet Coupling
Connectors
2. Connector Style
30 wall mounting receptacle
34 jam nut receptacle
36 standard straight plug
38 straight plug with RFI grounding fingers
3. Service Class
A aluminum shell, black non-conductive anodize fin-
ish, fluid resistant
R aluminum shell, electroless nickel finish, fluid resis-
tant
G stainless steel shell, passivated, fluid resistant
W aluminum shell, cadmium olive drab finish,
corrosion/fluid resistant
Note: Consult Amphenol, Sidney, NY for hermetic classes H and
Y availability.
4., 5. Shell size (sizes 8-24 available), and insert arrangement -
See chart on page 16 and pattern drawings that follow.
6. Contact Types
P designates pin
S designates socket
7. Keying Positions (rotation of master key/keyway of shell)
Use N for normal.
Use 6, 7, 8, 9, or Y for alternate keying positions.
See page 17 for descriptions.
Clocking Positions (rotation of insert)
Use 1, 2, 3, 4, or 5 for alternate clocking positions.
See page 17 for descriptions.
8. Modification Number
Consult Amphenol, Sidney, NY for information.
For ordering information on accessories, such as protection
caps and backshell hardware, contact Amphenol, Sidney, NY.
10
Receptacle Shell, Square Flange Wall Mount,
Threaded Coupling
Military No. M83723/82 with socket contacts
M83723/83 with pin contacts
Amphenol/Matrix No. MT30
To complete order number see how to order, page 15.
* Shell size 28 is not a MS connector; order by proprietary part number.
Shell
Size
A
±.005
B
±.005
C
Dia.
D Dia.
Max.
H
Accessory Thread
Class 2A
J
Coupling Thread
Class 2B
8 .812 .594 .125/.116 .305 .5000-20 UNEF .5625-24 UNEF
10 .937 .719 .125/.116 .405 .6250-24 UNEF .6875-24 UNEF
12 1.031 .812 .125/.116 .531 .7500-20 UNEF .8750-20 UNEF
14 1.125 .906 .125/.116 .665 .8750-20 UNEF .9375-20 UNEF
16 1.250 .969 .125/.116 .790 1.0000-20 UNEF 1.0625-18 UNEF
18 1.343 1.062 .125/.116 .869 1.0625-18 UNEF 1.1875-18 UNEF
20 1.437 1.156 .125/.116 .994 1.1875-18 UNEF 1.3125-18 UNEF
22 1.562 1.250 .125/.116 1.119 1.3125-18 UNEF 1.4375-18 UNEF
24 1.703 1.375 .154/.145 1.244 1.4375-18 UNEF 1.5625-18 UNEF
28* 2.000 1.562 .154/.145 1.465 1.7500-18 UNS 1.8125-16 UN
Miniature Cylindrical MIL-C-83723, Series III
Threaded Coupling
M83723/82 & 83
wall mounting receptacle
11
Receptacle Shell, Single hole mount Jam Nut Receptacle,
Threaded Coupling
Military No. M83723/84 with socket contacts
M83723/85 with pin contacts
Amphenol/Matrix No. MT34
To complete order number see how to order, page 15.
* Shell size 28 is not a MS connector; order by proprietary part number.
Shell
Size
A
±.003
B
Max.
C
Max.
D
Mounting Thread
E Dia.
Max. F
H
Accessory Thread
Class 2A
J
Mounting Thread
Class 2A
8 .593 .980 .828 .6250-20 UN .305 .137/.097 .5000-20 UNF .5625-24 UNEF
10 .718 1.104 .953 .7500-20 UNEF .405 .137/.097 .6250-24 UNEF .6875-24 UNEF
12 .905 1.291 1.140 .9375-20 UNEF .531 .137/.097 .7500-20 UNEF .8750-20 UNEF
14 .968 1.391 1.250 1.0000-20 UNEF .665 .137/.097 .8750-20 UNEF .9375-20 UNEF
16 1.093 1.516 1.329 1.1250-18 UNEF .790 .137/.097 1.0000-20 UNEF 1.0625-18 UNEF
18 1.217 1.641 1.455 1.2500-18 UNEF .869 .137/.097 1.0625-18 UNEF 1.1875-18 UNEF
20 1.342 1.766 1.642 1.3750-18 UNEF .994 .137/.097 1.1875-18 UNEF 1.3125-18 UNEF
22 1.467 1.954 1.705 1.5000-18 UNEF 1.119 .148/.128 1.3125-18 UNEF 1.4375-18 UNEF
24 1.592 2.079 1.892 1.6250-18 UNEF 1.244 .148/.128 1.4375-18 UNEF 1.5625-18 UNEF
28* 1.840 2.330 2.145 1.8750-20 UN 1.465 .148/.128 1.7500-18 UNS 1.8125-18 UN
Miniature Cylindrical MIL-C-83723, Series III
Threaded Coupling
M83723/84 & 85
jam nut receptacle
12
To complete order number see how to order, page 15.
* Shell size 28 is not a MS connector; order by proprietary part number.
Shell
Size
A Dia.
Max.
E Dia.
Max.
H
Accessory Thread
Class 2A
J
Coupling Thread
Class 2B
8 .756 .305 .5000-20 UNF .5625-24 UNEF
10 .906 .405 .6250-24 UNEF .6875-24 UNEF
12 1.078 .531 .7500-20 UNEF .8750-20 UNEF
14 1.141 .665 .8750-20 UNEF .9375-20 UNEF
16 1.266 .790 1.0000-20 UNEF 1.0625-18 UNEF
18 1.375 .869 1.0625-18 UNEF 1.1875-18 UNEF
20 1.510 .994 1.1875-18 UNEF 1.3125-18 UNEF
22 1.625 1.119 1.3125-18 UNEF 1.4375-18 UNEF
24 1.760 1.244 1.4375-18 UNEF 1.5625-18 UNEF
28* 2.050 1.465 1.7500-18 UNS 1.8125-18 UN
Miniature Cylindrical MIL-C-83723, Series III
Threaded Coupling
M83723/86 & 87 straight plug
M83723/91 & 92 straight plug with RFI grounding
Plug Shell,
Threaded Coupling
Military No.
M83723/86 with socket contacts
M83723/87 with pin contacts
Amphenol/Matrix No. MT36
Plug Shell, RFI Grounding,
Threaded Coupling
Military No.
M83723/91 with socket contacts
M83723/92 with pin contacts
Amphenol/Matrix No. MT38
13
Plug Shell, with Self-Locking Clutch Plate,
Threaded Coupling
Military No. M83723/95 with socket contacts
M83723/96 with pin contacts
Amphenol/Matrix No. MT37
To complete order number see how to order, page 15.
* Shell size 28 is not a MS connector; order by proprietary part number.
Shell
Size
A Dia.
Max.
B Dia.
Max.
H
Accessory Thread
Class 2A
J
Coupling Thread
Class 2B
8 .832 .305 .5000-20 UNEF .5625-24 UNEF
10 .959 .405 .6250-24 UNEF .6875-24 UNEF
12 1.097 .531 .7500-20 UNEF .8750-20 UNEF
14 1.236 .665 .8750-20 UNEF .9375-20 UNEF
16 1.360 .790 1.0000-20 UNEF 1.0625-18 UNEF
18 1.428 .869 1.0625-18 UNEF 1.1875-18 UNEF
20 1.586 .994 1.1875-18 UNEF 1.3125-18 UNEF
22 1.703 1.119 1.3125-18 UNEF 1.4375-18 UNEF
24 1.846 1.244 1.4375-18 UNEF 1.5625-18 UNEF
28* 2.165 1.465 1.7500-18 UNS 1.8125-18 UN
Miniature Cylindrical MIL-C-83723, Series III
Threaded Coupling
M83723/95 & 96
straight plug, self-locking
14
To complete order number see how to order, page 15.
Shell
Size
A Dia.
Max.
E Dia.
Max.
H
Accessory Thread
Class 2A
8 1.095 .305 .5000-20 UNF
10 1.240 .405 .6250-24 UNEF
12 1.432 .531 .7500-20 UNEF
14 1.490 .665 .8750-20 UNEF
16 1.711 .790 1.0000-20 UNEF
18 1.815 .869 1.0625-18 UNEF
20 1.962 .994 1.1875-18 UNEF
22 2.070 1.119 1.3125-18 UNEF
24 2.195 1.244 1.4375-18 UNEF
Miniature Cylindrical MIL-C-83723, Series III
Quick-Disconnect Coupling
M83723/66 & 67 quick-disconnect plug
M83723/68 & 69 quick-disconnect plug with lanyard
Plug Shell, Quick-Disconnect,
Push-Pull Coupling
without Lanyard
Military No.
M83723/66 with pin contacts
M83723/67 with socket contacts
Amphenol/Matrix No. MQ36
Plug Shell, Quick-Disconnect,
Push-Pull Coupling
with Lanyard
Military No.
M83723/68 with pin contacts
M83723/69 with socket contacts
Amphenol/Matrix No. MQ35
Receptacle Adapter
Required to mate the quick-disconnect plug with receptacle.
Not furnished with the quick-disconnect plug; must be ordered
separately.
Note: Use Locktite Material on
the threads for a permanent
installation to the shell.
How to Order Adapter
by Proprietary Part Number
2500-007-0X XX
Finish Shell Size
00 designates aluminum, electroless nickel, Class R
01 designates aluminum, hard anodize, Class A
03 designates aluminum, cadmium plate, Class W
02 designates stainless steel, Class G
How to Order Adapter
by Military Part Number
M83723/70 X XX
Finish Shell Size
R designates aluminum, electroless nickel, Class R
A designates aluminum, hard anodize, Class A
W designates aluminum, cadmium plate, Class W
G designates stainless steel, Class G
15
HOW TO ORDER BY MILITARY PART NUMBER
MIL-C-83723 SERIES III THREADED COUPLING AND
QUICK-DISCONNECT COUPLING CONNECTORS
M83723 /84 R 08 03 N
1 23456
1. Connector Type
M83723 designates MIL-C-83723 Series III Connectors
2. Connector Style
(Refer to military specification slashsheet number.)
THREADED COUPLING CONNECTORS
are designated by the following numbers:
/82 wall mounting receptacle with socket contacts
/83 wall mounting receptacle with pin contacts
/84 jam nut receptacle with socket contacts
/85 jam nut receptacle with pin contacts
/86 standard straight plug with socket contacts
/87 standard straight plug with pin contacts
/91 straight plug with RFI grounding, socket contacts
/92 straight plug with RFI grounding, pin contacts
/95 straight plug with self-locking clutch plate,
socket contacts
/96 straight plug with self-locking clutch plate,
pin contacts
QUICK-DISCONNECT COUPLING CONNECTORS
are designated by the following numbers:
/66 straight plug without lanyard, pin contacts
/67 straight plug without lanyard, socket contacts
/68 straight plug with lanyard, pin contacts
/69 straight plug with lanyard, socket contacts
3. Service Class
For threaded and quick-disconnect coupling connectors:
A aluminum shell, black non-conductive anodize finish,
fluid resistant
R aluminum shell, electroless nickel finish, fluid resistant
G stainless steel shell, passivated, fluid resistant
W aluminum shell, cadmium olive drab finish,
corrosion/fluid resistant
Consult Amphenol, Sidney, NY for the following additional
classes of MIL-C-83723, Series III which are available in the
Amphenol/Pyle versions.:
Classes K, S, N - firewall, high temperature (200°C - 260°C)
Classes H and Y - hermetics
4., 5. Shell size and insert arrangement - See chart on page 16
and pattern drawings that follow.
Shell sizes 8 thru 28 are available in threaded coupling con-
nectors. (However, note that size 28 shell is not an MS con-
nector, and should be ordered by proprietary number.)
Shell sizes 8 thru 24 are available in quick-disconnect cou-
pling connectors.
6. Keying Positions (rotation of master key/keyway of shell)
Use N for normal.
Use 6, 7, 8, 9, or Y for alternate keying positions.
See page 17 for descriptions.
Clocking Positions (rotation of insert)
Use 1, 2, 3, 4 or 5 for alternate clocking positions.
See page 17 for descriptions.
Miniature Cylindrical MIL-C-83723, Series III
Threaded and Quick-Disconnect Coupling
how to order
HOW TO ORDER BY PROPRIETARY PART NUMBER
MIL-C-83723 SERIES III THREADED COUPLING AND
QUICK-DISCONNECT COUPLING CONNECTORS
MT 34 R08 03 P 7 –***
12345678
1. Connector Type
MT designates Amphenol®/Matrix® Threaded Coupling
Connectors
MQ designates Amphenol®/Matrix® Quick-Disconnect
Coupling Connectors
2. Connector Style
THREADED COUPLING CONNECTORS
are designated by the following numbers:
30 wall mounting receptacle
34 jam nut receptacle
36 standard straight plug
38 straight plug with RFI grounding fingers
37 straight plug with self-locking clutch plate
QUICK-DISCONNECT COUPLING CONNECTORS
are designated by the following numbers:
35 straight plug with lanyard
36 straight plug without lanyard
3. Service Class
For threaded and quick-disconnect coupling connectors:
A aluminum shell, black non-conductive anodize finish,
fluid resistant
R aluminum shell, electroless nickel finish, fluid resistant
G stainless steel shell, passivated, fluid resistant
W aluminum shell, cadmium olive drab finish,
corrosion/fluid resistant
Consult Amphenol, Sidney, NY for the following additional
classes of MIL-C-83723, Series III which are available in the
Amphenol/Pyle versions.:
Classes K, S, N - firewall, high temperature (200°C - 260°C)
Classes H and Y - hermetics
4., 5. Shell size and insert arrangement - See chart on page 16
and pattern drawings that follow.
Shell sizes 8 thru 28 are available in threaded coupling con-
nectors. Shell sizes 8 thru 24 are available in quick-discon-
nect coupling connectors.
6. Contact Types
P designates pin
S designates socket
7. Keying Positions (rotation of master key/keyway of shell)
Use 6, 7, 8, 9, or Y for alternate keying positions.
See page 17 for descriptions.
Clocking Positions (rotation of insert)
Use 1, 2, 3, 4 or 5 for alternate clocking positions.
See page 17 for descriptions.
8. Modification Number
Consult Amphenol, Sidney, NY for information.
For ordering information on accessories,
such as protection caps and backshell hard-
ware, contact Amphenol, Sidney, NY.
16
Miniature Cylindrical MIL-C-83723, Series III
insert arrangement chart
† Not an MS layout.
Connectors with these insert arrangements should be ordered by proprietary part number only.
Shell size 28 is available in threaded coupling connectors only.
See how to order for bayonet type connectors on page 9, and how to order for threaded and quick-disconnect type
connectors on page 15.
Insert arrangements are per MIL-STD-1554.
INSERT ARRANGEMENTS
Shell Size/
Insert
Arrangement
Service
Rating
Total
Contacts
Contact Size
12 16 20
0803 I 3 3
0898 I 3 3
1002 I 2 2
1005 I 5 5
1006 I 6 6
1020 I 2 2
1203 I 3 3
1212 I 12 12
1404 I 4 4
1407 I 7 7
1412 I 12 3 9
1415 I 15 15
1610 I 10 10
1624 I 24 24
1808 I 8 8
1814 I 14 14
1831 I 31 31
2016 I 16 16
2025 I 25 6 19
2028 I 28 4 24
2039 I 39 2 37
2041 I 41 41
2212 I 12 12
2219 I 19 19
2232 I 32 6 26
2255 I 55 55
2429† 29 29
2430† 30 30
2443 I 43 20 23
2457 I 57 2 55
2461 I 61 61
2841† 41 41
2842† 42 42
17
Miniature Cylindrical MIL-C-83723, Series III
alternate positioning
ALTERNATE KEYING POSITIONS
(Rotation of key/keyway of shell)
To avoid cross-plugging problems in applications requiring the
use of more than one connector of the same size and arrange-
ment, alternate keying positions are available as indicated in the
chart below.
The diagram shows the engaging view of a receptacle shell with
keyways. The insert is rotated counter-clockwise relative to the
centerline. Plug shells would be the opposite of this diagram.
In the “Normal insert position” (position N), the insert center line
coincides with the centerline of the master key/keyway of the
shell.
In the “alternate keying positions” (positions 6, 7, 8, 9 and Y),
the minor keys/lkeyways are positioned with reference to master
key/keyway as indicated in the keying position table.
* Position Y supersedes inactive positions 10 and Z designations.
Ref. MIL-STD-1554.
KEYING POSITIONS
Shell
Size
Polarizing
Position
Key/Keyway Positions Insert
Position E°A° B° C° D°
8 thru 24 N 105 140 215 265 0
8 & 10
6 102 132 248 320 0
7 80 118 230 312 0
8 35 140 205 275 0
9 64 155 234 304 0
10 only Y* 25 115 220 270 0
12, 14, 16,
18, 20, 22,
24 and 28
6 18 149 192 259 0
7 92 152 222 342 0
8 84 152 204 334 0
9 24 135 199 240 0
Y* 98 152 268 338 0
ALTERNATE CLOCKING POSITIONS
(Rotation of insert)
Alternate positioning is also available with the rotation of the
insert. The diagram below shows the pin insert mating face.
The centerline of the shell in the normal insert position (position
N) coincides with the centerline of the master key/keyway in the
shell.
In alternate clocking positions, (positions 1, 2, 3, 4 and 5), the
insert rotates relative to the centerline of the key/keyway of the
shell. See E° callout on diagram and the table for insert clock-
ing. The socket insert is rotated clockwise, and the pin insert is
rotated counter-clockwise.
Note: Positions 1-5 are inactive for new designs per MIL-STD-1554.
INSERT CLOCKING POSITIONS
Shell
Size
Polarizing
Position
Key/Keyway Positions Insert
Position E°A° B° C° D°
8 & 10
N 105 140 215 265 0
1 105 140 215 265 10
2 105 140 215 265 20
3 105 140 215 265 30
4 105 140 215 265 40
5 105 140 215 265 50
12, 14, 16,
18, 20, 22,
24 and 28
N 105 140 215 265 0
1 105 140 215 265 10
2 105 140 215 265 20
3 105 140 215 265 30
4 105 140 215 265 40
5 105 140 215 265 50
18
front face of pin insert or rear face of socket insert illustrated
Miniature Cylindrical MIL-C-83723, Series III
contact arrangements
Insert Arrangement 0803 0898 1002 1005 1006 1020
Service Rating I I I I I I
Number of Contacts 3 3 2 5 6 2
Contact Size 20 20 20 20 20 16
Insert Arrangement 1203 1212 1404 1407 1412
Service Rating IIII I
Number of Contacts 3 12 4 7 9 3
Contact Size 16 20 12 16 20 16
Insert Arrangement 1415 1610 1624 1808
Service Rating I I I I
Number of Contacts 15 10 24 8
Contact Size 20 16 20 12
CONTACT LEGEND 20 16 12
19
front face of pin insert or rear face of socket insert illustrated
Miniature Cylindrical MIL-C-83723, Series III
contact arrangements
Insert Arrangement 1814 1831 2016 2025
Service Rating I I I I
Number of Contacts 14 31 16 19 6
Contact Size 16 20 16 20 12
Insert Arrangement 2028 2039 2041
Service Rating I I I
Number of Contacts 24 4 37 2 41
Contact Size 20 12 20 16 20
Insert Arrangement 2212 2219 2232
Service Rating I I I
Number of Contacts 12 19 26 6
Contact Size 12 16 20 12
CONTACT LEGEND 20 16 12
20
front face of pin insert or rear face of socket insert illustrated
Miniature Cylindrical MIL-C-83723, Series III
contact arrangements
Insert Arrangement 2255 2429† 2430†
Service Rating I
Number of Contacts 55 29 30
Contact Size 20 16 16
Insert Arrangement 2443 2457 2461
Service Rating I I I
Number of Contacts 23 20 55 2 61
Contact Size 20 16 20 12 20
Insert Arrangement 2841† 2842†
Service Rating
Number of Contacts 41 42
Contact Size 16 16
CONTACT LEGEND 20 16 12
† Not an MS layout.
Connectors with these insert arrangements can be ordered by
proprietary part number only.
Shell size 28 is available in threaded coupling connectors only.
See how to order for bayonet type connectors on page 9, and how to
order for threaded and quick-disconnect type connectors on page 15.
21
Miniature Cylindrical MIL-C-83723, Series III
contact information, sealing plugs,
crimping and insertion/removal tools
MIL-C-83723, SERIES III
CRIMP CONTACTS
Contact
Size
Wire Range Socket Contacts Pin Contacts
AWG mm2
Military
Part Number
Military
Part Number
20 24-20 0.2-0.6 M39029/5-115 M39029/4-110
16 20-16 0.5-1.4 M39029/5-116 M39029/4-111
12 14-12 2-3 M39029/5-118 M39029/4-113
* Organize individual circuits to maintain heat rise within
operating temperature requirements.
CONTACT CURRENT RATING AND RETENTION
Contact
Size*
Current Rating Contact Retention
Amperes
Max.
Volt age
Drop
Millivolts
Axial Load
lb. N
20 7.5 35 20 89.0
16 13.0 25 25 111.2
12 23.0 25 30 133.4
SEALING PLUGS
Contact
Size
Sealing Plugs
Military
Part Number
Amphenol/Matrix
Part Number
20 MS27488-20 3400-043-0020
16 MS27488-16 3400-043-0016
12 MS27488-12 3400-043-0012
Note: Each connector is furnished with contacts. One spare for inserts requiring
1 to 26 of each contact, two spares for inserts with more than 26
contacts, and a minimum of one sealing plug up to 10% of the number
of contacts.
CRIMPING TOOLS
Contact
Size
Wire Range Finished Wire Dia. Range Crimping Tool
Part Number
Turret or Positioner
Part NumberAWG mm2Inch mm
20 24-20 0.2-0.6 .040-.083 1.02-2.11 M22520/1-01 or
M22520/2-01
M22520/1-02 or
M22520/2-02
16 20-16 0.5-1.4 .053-.103 1.34-2.62 M22520/1-01 M22520/1-02
12 14-12 2-3 .097-.158 2.46-4.01 M22520/1-01 M22520/1-02
INSERTION/REMOVAL TOOLS
Contact
Size Color Code
Military
Part Number
Amphenol/Matrix
Part Number
20 Red/White M81969/14-11 6500-001-0020
16 Blue/White M81969/14-03 6500-001-0016
12 Yellow/White M81969/14-04 6500-001-0012
22
Amphenol offers additional connector product
lines within the family of MIL-C-83723, Series
III under the Pyle-National® brands. These
products are shown in detail in the Amphenol/
Pyle catalog, MS-102, which can be supplied
upon request. Each series offers varying
design characteristics and customer options
to provide users with the highest level of flexi-
bility.
The additional products offered through the
Pyle designations of Amphenol products are
briefly described as follows:
• Class K Firewall
Pyle-National offers Class K MIL-C-83723, Series III con-
nectors which have corrosion-resistant, stainless steel,
passivated shells. These connectors incorporate non-flam-
mable, hard dielectric, fluid resistant inserts, and they have
high temperature capability up to 200°C.
• High Temperature/European Specification Versions
Offered under the Pyle designation, there are high temper-
ature versions (up to 260°C) of MIL-C-83723, Series III that
meet the following specifications:
• Boeing BACC63CM/CN Firewall, and Pyle equivalent
BSK versions
• ESC11/Pyle HTK Series - 100% scoop-proof version/
high temperature
• AECMA designation - EN2997
• ESC10, /11, /15, /16 Rolls Royce Standards
• Aerospatiale, ASN-EO44X Class KE/SE
• General Electric M50TF3564
• Hermetic MIL-C-83723, Series III
Hermetics are available under Pyle designation part num-
bers. Shell styles are: square flange receptacles, D-hole
mounted receptacles, and solder mount receptacles. These
are stainless steel, passivated, and are temperature capable
for up to 200°C.
• Additional contact options
Pyle offers additional options for MIL-C-83723, Series III
connectors which include shielded twinax and thermocouple
types.
For further information on these Amphenol/Pyle products, or
any specific applications consult Amphenol, Sidney, NY.
Additional MIL-C-83723, Series III
Miniature Cylindrical Connectors
offered by Amphenol
Amphenol®/Pyle® ESC10, /11, /15 and /16
are available from Amphenol
