MIL-PRF-39012/3H
w/AMENDMENT 2
2 June 2015
SUPERSEDING
MIL-PRF-39012/3H
w/AMENDMENT 1
4 May 2010
PERFORMANCE SPECIFICATION SHEET
CONNECTORS, RECEPTACLES, ELECTRICAL, COAXIAL, RADIO FREQUENCY
(SERIES N (CABLED), JAM NUT MOUNTED, SOCKET CONTACT, CLASS 2)
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of
this specification sheet and MIL-PRF-39012.
FIGURE 1. General configuration.
INCH-POUND
AMSC N/A FSC 5935
MIL-PRF-39012/3H
w/AMENDMENT 2
NOTES:
1. Dim ensions are in inches.
2. Metric equivalents are given for information only
3. For dimensions A and B, see tables I and III.
4. Dimensions A and B are the largest overall dimensions of the connector.
5. Wrench flats to accommodate standard wrench in accordance with FED-STD-H28, appendix 10.
6. All undimensioned pictorial configurations are for reference purposes only.
7. Dimension A defines the maximum length of the connector when assembled to the appropriate
cable.
8. Series N, socket contact interface, in accordance with MIL-STD-348.
FIGURE 1. General configuration – Continued.
FIGURE 2. Category D captivation detail.
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MIL-PRF-39012/3H
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Inches mm
.007 0.18
.010 0.25
.032 0.81
.103 2.62
.316 8.03
.320 8.13
.422 10.72
.484 12.29
NOTES:
1. Dim ensions are in inches.
2. Metric equivalents are given for information only.
3. Slot design is optional.
4. Full threads to within .06 3 inch (1.60 mm) of shoulder; 1 1/2 maximum uneven threads to shoulder.
5. Chamfer is optional. If chamfer is used, put chamfer on a 30° maximum.
6. Dimension to meet connector performance requirements.
FIGURE 2. Category D captivation detail – Continued.
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MIL-PRF-39012/3H
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TABLE I. Dash numbers , cros s-reference, and dimensions.
Part or Identifying
Number (PIN)
M39012/03- 1/
Applicable cabl e 2/
M17/ Dimensions
Inches (millimeters) #
Minimum Maximum
Category A – Field serviceable (no special tools required) 3/ 4/
X101
Cable group VIII
112-RG304 5/
A
B
.850 (21.59)
1.900 (48.26)
.900 (22.86)
X104
Cable group XIV
79-RG218 5/
X012
Cable group X
86-00001 6/
127-RG393 5/
X102
Cable group XII
78-RG217 5/
A
B
.850 (21.59)
2.094 (53.19)
.900 (22.86)
X125
Cable group XI
74-RG215 5/ 7/
189-00002 7/
A
B
.850 (21.59)
1.900 (48.26)
.900 (22.86)
X030
220-00001
A
B
2.094 (53.19)
.900 (22.86)
X130
220-00002 7/
X031
221-00001
X131
221-00002 7/
X032
222-00001
X132
222-00002 7/
X033
223-00001
X133
223-00002 7/
X034
224-00001
X134
224-00002 7/
X035
225-00001
X135
225-00002 7/
X036
226-00001
X136
226-00002 7/
X037
227-00001
X137
227-00002 7/
X038
228-00001
X138
228-00002 7/
See notes at end of table.
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MIL-PRF-39012/3H
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TABLE I. Dash numbers, cross-reference, and dimensions – Continued.
Applicable cable 2/
M17/
Dimensions
Inches (millimeters) #
Minimum
Maximum
Categor y C – Field replaceable (MIL-DTL-22520 crimp tool)
See note next to applicable cable group for crimp die 3/ 4/ 8/
X013
Cable group VIII 9/
112-RG303 5/
A
B
.850 (21.59)
2.031 (51.59)
.900 (22.86)
X014
Cable group XA 10/
65-RG165 5/ 6/
X015
Cable group XB 10/
86-00001 6/
127-RG393 5/
A
B
.850 (21.59)
2.031 (51.59)
.900 (22.86)
X020
Cable group XC 10/
62-RG144 4/ 5/ 6/
X021
Cable group XD 10/
77-RG216 4/ 5/ 6/
Categor y D – Field replaceable – Defined piece part 3/ 8/ 11/ 12/
X501
Cable group XB
127-RG393 5/
A
B
.850 (21.59)
1.875 (47.62)
.900 (22.86)
X502
Cable group XA
65-RG165 5/
See notes at end of table.
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MIL-PRF-39012/3H
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TABLE I. Dash numbers, cross-reference, and dimensions – Continued.
Applicable cable 2/
M17/
Dimensions
Inches (millimeters) #
Minimum
Maximum
Categor y D – Field replaceable – Defined piece part 3/ 8/ 11/ 12/
X503
Cable group VIB
60-RG142 6/
128-RG400 5/
A
B
.850 (21.59)
1.781 (45.24)
.900 (22.86)
X504
Cable group VIA
111-RG303 5/
1/ For cross-reference of dash number to superseded PIN or type desi gna tio n, s ee table IV.
2/ The latest version of each cable shall be applicable.
3/ These connectors have captivated center contacts.
4/ Some of the cables in some cable groups are not 50 ohms; therefore, when attached to the specified
connectors, VSWR, RF leakage and insertion loss are not applicable. Refer to MIL-PRF-39012
appendix for cable groupings.
5/ Cable to be used when performing tests requiring cable except as in 4/ and 6/.
6/ Cable to be used for the 200°C temperature cycling tests.
7/ Armored cable.
8/ These connectors are assembled, using the applicable crimp tool, to the specified cable stripped as
shown on figure 4.
9/ M22520/5-35 closure A or M22520/5-55 closure A.
10/ M22520/5-61.
11/ Complete connector assembly shall consist of a body, center contact, ferrule, and assembly
instructions.
12/ Not to be used in army equipment.
# Dimensions are in inches. Metric equivalents are given for information only.
X Denotes conne ctor body plati ng material option. The only plating options allowable are Silver or Nickel over
brass in accor dan ce w ith MIL-PRF-39012. Only connectors of the same materials shall be mated to avoid
dissimilar metal problems. CAUTION: A NICKEL PLATED BODY IS NOT FOR USE IN
APPLICATIONS WHERE PASSIVE INTERMODULATION GENERA TION (PIM) MAY BE A
CONCERN. Silver is the preferred plating option.
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MIL-PRF-39012/3H
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Inches mm Inches mm Inches mm Inches mm
.001 0.03 .043 1.09 .207 5.26 .438 11.13
.002 0.05 .098 2.49 .220 5.59 .492 12.50
.003 0.08 .104 2.64 .234 5.94 .500 12.70
.005 0.13 .120 3.05 .245 6.22 .600 15.24
.015 0.38 .156 3.96 .250 6.35 .682 17.32
.031 0.79 .187 4.75 .292 7.42
.036 0.91 .206 5.23 .418 10.62
Dash
no.
Contact
no.
1/
A
(inches)
Basic crimp
tool
M22520/1
2/
Crimp die
or positioner
M22520/1
3/
Crimp
tensile
Minimum,
Pounds
(N)
Color
band
Color
band
Ο
X501
X502
3-10 098±.002 -01 -14
60
(266.90)
Red Red
X503
X504
3-11
.043
+.001
-.002
-01 -14 20
(88.96) Blue Red
1/ Contact numbers are for identification only.
2/ Class 2 tool may be used by OEM (see MIL-DTL-22520)
3/ Optional tool: M22520/5-01 with M22520-5/25 closure B die.
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Contact material shall be copper beryllium. C onn ect ors s uppl ied w ith phos phor br onz e cont act s
are acceptable for Government use until existing stock is purged.
4. Crimp tensile test shall be in accordance with SAE-AS39029.
5. Copyright notice: All information disclosed in these specification sheet which is or may be copyrighted
is reprodu ced here in w ith the ex press perm is sio n of the copy right owner.
6. Maximum break of .003 inch (0.08 mm).
7. Color bands shall be positioned such that no coloring material enters the inspection hole.
FIGURE 3. Contact and ferrule dimensions for category D only.
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MIL-PRF-39012/3H
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Dash
number Ferrule
number 1/ A
± .003 B
± .003 C ± .015 Basic crimp
tool 2/
Crimp die or
positioner
M22520/5-
X501
3-50
.492
.438
.600
M22520/5-
01
25
Closure A
or 61
X502 3-51 .492 .418 .600
X503
3-52
.250
.220
.500
5, 11, 57
Closure A
or 19
Closure B
X504 3-53 .245 .206 .500
1/ Ferrule numbers are for identification only.
2/ Class 2 tools may be used by OEM (see MIL-DTL-22520).
FIGURE 3. Contact and ferrule dimensions for category D only – Continued.
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MIL-PRF-39012/3H
w/AMENDMENT 2
Inches mm
.177 4.50
.197 5.00
.396 10.06
.416 10.57
.490 12.45
.510 12.95
.687 17.45
NOTES
1. Dim ensions are in inches.
2. Metric equivalents are given for information only.
FIGURE 4. Cable stripping dimensions for field replaceable connectors.
ENGINEERING DATA:
Nominal impedance: 50 ohms.
Frequency range: 0 to 11 GHz.
Voltage rating
1,000 volts rms maximum working voltage at sea level.
250 volts rms maximum at 70,000 feet (4.437 kPa).
Temperature rating: -65°C to +165°C.
REQUIREMENTS:
Designs and configurations: See figures 1, 3 and 4.
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MIL-PRF-39012/3H
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Force to engage and disengage:
Longitudinal force: Not applicable.
Torque: 6 inch-pounds (.68 Nm) maximum.
Coupling proof torque: Not applicable.
Inspection conditions: Coupling torque: 6 to 10 inch-pounds (.68 – 1.13 Nm).
Mating characteristics: In accordance with MIL-STD-348 and figure 2.
Center contact (socket):
Oversize test pin: .074 inch (1.88 mm) diameter minimum (nonclosed entry contacts only).
Insertion depth: .125 inch (3.17 mm) minimum.
Number of insertions: 1.
Insertion force test: Steel test pin diameter .066 inch (1.68 mm) minimum.
Test pin finish: 16 microinches (0.406 µm).
Insertion force: 2 pounds ( 8.90 N) maximum.
Withdrawal force test: Steel test pin diameter .063 inch (1.60 mm) maximum.
Withdrawal force: 2 ounces (.56 N) minimum.
Test pin finish: 16 microinches (0.406 µm).
Hermetic seal: Not applicable.
Leakage (pressurized connectors): Not applicable.
Insulation resistance: Method 302 of MIL-STD-202, test condition B. 5,000 megohms minimum.
Center contact retention: (Applicable to captivated-center-contact connectors only.) 15 pounds
(66.72 N) minimum axial force for all cables except RG400 and RG142; 6 pounds (26.69 N) minimum
for RG400 and RG142.
Corrosion (salt spray): Method 101 of MIL-STD-202, test condition B.
Voltage standing wave ratio (VSWR): From .5 MHz to 11 GHz, or approximately 80 percent of upper
cutoff frequency of the cable, whichever is lower; 1.30 maximum (1.45 max. to 11 GHz for –X503 and
-X504).
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MIL-PRF-39012/3H
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Swept frequency VSWR test setup
Item 6: VSWR shall be less than 1.008 +.002 F (F in GHz).
Item 16: VSWR shall be less than 1.008 +.002 F (F in GHz).
Second step of VSWR checkout procedure – VSWR shall be less than 1.012 +.004 F (F in GHz).
Group B inspection – VSWR shall be less than 1.024 +.007 F (F in GHz).
Qualification and group C inspection – VSWR shall not exceed 1.08.
Connector durability: 500 cycles minimum at 12 cycles/minute maximum. The connector shall meet
the mating characteristics and force to engage and disengage requirements.
Contact resistance: In milliohms maximum.
Initial After environment
Center contact 1.0 1.5
Outer contact (silver) .2 N ot app lic abl e
Outer contact (nickel) .4 Not applicable
Braid to body .05 Not applic abl e
Dielectric withstanding voltage: Method 301 of MIL-STD-202. 3,000 volts rms minimum at sea level for
connectors using other than RG400 and RG142; 1,500 volts rms minimum for connectors using RG400
and RG142.
Vibration, high frequency: Method 204 of MIL-STD-202, test condition B.
Shock: Method 213 of MIL-STD-202, test condition I.
Thermal shock: Method 107 of MIL-STD-202, test condition B, except high temperature shall be
+85°C. High temperature shall be +200°C for connectors using +200°C cables (see table I and III).
Moisture resistance: Method 106 of MIL-STD-202. No measurements at high humidity. Insulation
resistance shall be at least 200 megohms within 5 minutes after removal from humidity.
Corona leve l:
Voltage: 500 volts rms minimum
Altitude: 70,000 feet (4.437 kPa).
RF high potential withstanding voltage:
Voltage and frequency: 1,500 volts rms tested at a frequency from 5 to 7.5 MHz.
Leakage current: Not applicable.
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MIL-PRF-39012/3H
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Cable retention force:
Noncrimp assemblies: 75 pounds (333.62 N) minimum.
Crimp assemblies:
50 lbs. (222.41 N) minimum for cables .155 - .189 inch (3.94 mm – 4.80 mm) OD.
60 lbs. (266.90 N) minimum for cables .190 - .229 inch (4.83 mm – 5.82 mm) OD.
75 lbs. (333.62 N) minimum for cables .230 - .249 inch (5.84 mm – 6.32 mm) OD.
90 lbs. (400.34 N) minimum for cables .250 inch (6.35 mm) OD and larger.
Coupling mechanism retention force: Not applicable.
RF leakage: -90 dB minimum, tested at a frequency between 2 and 3 GHz.
Insertion loss: .15 dB maximum at 10 GHz
PIN: M39012/03- (dash number from table I or “B” number from table III).
Group qualification: See table II.
TABLE II. Group qualification. 1/
Group
Submission and qualification of
any of the following connectors 2/
M39012/
Qualifies the following
connectors
M39012/
I
02-X003
02-X101
02-X104
03-X101
03-X102
02-X003
02-X101
02-X104
03-X101
03-X102
II
02-X003
02-X006
03-X012
02-X003
02-X006
03-X012
See notes at end of table.
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MIL-PRF-39012/3H
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TABLE II. Group qualification – Continued. 1/
Group
Submission and qualification of
any of the following connectors 2/
M39012/
Qualifies the following
connectors
M39012/
III
02B0007
02B0008
02B0009
02B0012
02B0013
02B0015
02B0016
02B0017
03B0003
03B0004
03B0005
03B0006
03B0008
03B0009
02B0007
02B0008
02B0009
02B0012
02B0013
02B0014
02B0015
02B0016
02B0017
02B0018
03B0003
03B0004
03B0005
03B0006
03B0008
03B0009
03B0010
03B0011
IV
02-X019
02-X020
02-X021
02-X022
02-X027
02-X028
02-X029
03-X013
03-X014
03-X015
02B0007
02B0008
02B0009
02B0012
02B0013
02B0014
02B0015
02B0016
02B0017
02B0018
02-X019
02-X020
02-X021
02-X022
See notes at end of table.
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MIL-PRF-39012/3H
w/AMENDMENT 2
TABLE II. Group qualification – Continued. 1/
Group
Submission and qua lif icat ion of
any of the following connectors 2/
M39012/
Qualifies the foll owing
connectors
M39012/
IV
02-X026
02-X027
02-X028
02-X029
02-X030
03B0003
03B0004
03B0005
03B0008
03B0009
03B0010
03B0011
03-X013
03-X020
03-X021
V
02B0014
02B0018
03B0010
03B0011
02B0014
02B0018
03B0010
03B0011
VI
02-X026
02-X030
03-X013
03-X020
03-X021
03-X023
02B0014
02B0018
02-X026
02-X030
03B0010
03B0011
03-X-13
03-X020
03-X021
VII
03B0022
03B0022
VIII
03-X501
03-X502
03-X501
03-X502
03-X503
IX
03-X503
03-X503
X
03-X504
03-X504
1/ If a connector manufacturer produces a connector which meets all the requirements for two or more
connector PINs (within the same series), the manufacturer may receive qualification approval for two
or more conne ctor PINs by qualifying the one connector. It is not necessary that such connectors be
in the same group. Each connector, however, must be marked with its own appropriate PIN. For
group qualification, the connectors must be of similar design and be of the same materials and plating.
2/ For qualification retention, where more than one part is listed in a group in this column, data may be
supplied on any of those parts in order to retain qualification for those parts in the corresponding right-
hand column. The part does not necessarily have to be the part initially qualified.
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MIL-PRF-39012/3H
w/AMENDMENT 2
TABLE III. Category B – nonfield replaceable (special tools may be required). 1/
PIN 2/
M39012/03B
Applicable cable 3/
M17/
Dimensions
Inches (millimeters) #
Minimum
Maximum
0003 4/
073-RG212 5/
RG-222/U
A
B
.850 (21.59)
2.031 (51.59)
.900 (22.86)
0004 4/
074-RG213 5/
0005 4/
75-RG214 5/
0006 4/
078-RG217
0008 4/
65-RG165 5/ 6/
0009 4/
RG-225/U 5/ 6/
0010 4/
62-RG144 5/ 6/ 7/
6-RG11 7/
0011 4/
77-RG216 5/ 7/
0022 8/
2-RG6 5/ 7/
1/ For maintenance replacements for category B, see table V
2/ For cross-reference of dash number to superseded PIN or type designation, see table IV
3/ The latest version of each cable shall be applicable
4/ Inactive for new design.
5/ Cable to be used when performing tests requiring cable except as in 6/ and 7/
6/ Cable to be used for the +200°C temperature cycling tests.
7/ These are not 50-ohm cables; therefore, when attached to the specified connectors, VSWR, RF
leakage, and insertion loss are not applicable.
8/ These connectors have captivated center contacts.
# Dimensions are in inches. Metric equivalents are given for information only.
NOT FOR ARMY, NAVY OR AIR FORCE USE. FOR OEM USE ONLY
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MIL-PRF-39012/3H
w/AMENDMENT 2
TABLE IV. Superses s ion d ata. 1/ 2/
Preferred PIN
M39012/03
(except as otherwise specified in
tables I or III)
Superseded PIN
or type designation
-0101
UG1590/U, M39012/03-0001
-0012
M23329/2-21, UG160F /U, M39012/03 -
0002
B0003
M23329/2-20, M3901 2/03-0003,
M23329/2-25, M3901 2/03-0007, UG-
1699/U, UG-1703/U
B0004
UG-1700/U, M39012/03-0004
B0005
M23329/2-22, UG-170 1/U, M390 12/ 03 -
0005
B0006
M23329/2-23, UG-170 2/U, M39012/03 -
0006
B0008
M23329/2-26, UG-170 4/U, M390 12/ 03 -
0008
B0009
M23329/2-27, UG-170 5/U, M390 12/ 02 -
0009
B0010
M23329/2-28, UG-170 6/U, M390 12/ 03 -
0010
B0011
UG-1819/U, M39012/03-0017
-0012
UG-1537A/U
-0013
M39012/03-0017, M3 901 2/ 03-0023
-0014
M39012/03-0018
.0015
M39012/03-0019
-0020
-0021
B0022
M39012/03-0022
-0501
-0502
-0503
-0504
UG-556B/U
1/ The superseded PIN or the type designation is for reference only. Where a superseded PIN or
type designation is not given, none was assigned or will be assigned. The PIN M39012/03-XXXX
shall be used in all cases for marking and identifying the connector.
2/ The basic type designation includes all letter versions of the specified number, e.g., UG-18/U includes
UG-18A/U, UG-18B/U, etc.
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MIL-PRF-39012/3H
w/AMENDMENT 2
TABLE V. Maintenance replacements for category B.
Category B
number 1/
Category C
dash number
Category A
dash number
Category D
dash number
B0003
B0004
B0005
B0006
B0008
B0009
B0010
B0011
B0022
0013
0014
0015
--
--
--
0020
0021
--
0101
0012
0012
--
0012
0012
0012
0012
0101
--
0502
0501
--
--
0501
--
--
--
1/ Category B connectors are for original installation only. They will not be stocked or procured by the
Government.
Amendment notations. The margins of this specification are marked with vertical lines to indicate
modifications generated by this amendment. This was done as a convenience only and the Government
assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are
cautioned to evaluate the requirements of this document based on the entire content irrespective of the
marginal notations.
Referenced documents. In addition to MIL-PRF-39012, this document references the following:
MIL-STD-202
MIL-STD-348
FED-STD-H28
MIL-DTL-22520
SAE-AS39029
CONCLUDING MATERIAL
Custodians: Preparing activity:
Army – CR DLA – CC
Navy – EC
Air Force – 85 (Project 5935-2015-151)
NASA – NA
DLA - CC
Revie w ac t i vit ies :
Army – AR, AT, EA, MI
Navy – AS, MC, O S, SH
Air Force – 19, 99
NOTE: The activities listed above were interested in this document as of the date of this document.
Since organizations and responsibilities can change, you should verify the currency of the information
above using the ASSIST Online database at https://assist.dla.mil/.
17