www.glenair.com E-Mail:sales@glenair.com
GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912
B
B-34
© 2012 Glenair, Inc. U.S. CAGE Code 06324 Printed in U.S.A.
MIL-DTL-38999
Series III Type
HowToOrder
Product
Series
Connector
Designator,
MIL-DTL-38999,
Series III&IV
BasicNo. LengthIn1/2Inch
Increments
(Example: 4 = 2 Inches)
377 H S 014 XM 11 06 4 G
Optional
EntrySize
(Table II)
Omit for
Std. Table I
ShellSize
(Table I)
Material/
Finish
(Table III)
CodeG- Gland Nut;
CodeT- Tubing Adapter,
Glenair Types E, F, P, & T
CodeK- Tubing Adapter
with Nut, Glenair Peek
CodeTB- Tubing Adapter
Supplied with Band, Glenair Types
E, F, P, & T
CodeTN- Tubing Adapter with
Nut, Glenair Types E, F, P, & T
(Omit for Std.Shrink Boot Adapter)
AngularFunction
S = Straight
W = 90° Solid Elbow
T = 45° Solid Elbow
Material and Finish
Adapters, Elbows, Coupling Nut, Nut: Hi-grade engineering thermoplastic/see table III
Grommet, O-Ring: Fluorosilicone
Anti-Rotation Device: Corrosion resistant material
Notes
Glenair 600 Series Backshell assembly tools are recommended for assembly and installation.
Standard minimum length: 1.5 inches, for shorter length consult factory.
For Sealing Plugs, see Glenair drawing 687-142.
377-014
Composite Backshell
for Fiber Optic MIL-DTL-38999 Series III & IV Connectors
MIL-DTL-38999 series III & IV backshell
Band Termination
See P/N Development
CODE S - STRAIGHT
A Thread
1.75
Max
Anti-rotation
Device
Positive Stop
Anti-Rotation
Device
Length
.190 (4.8)
L Hex Flats
Grommet Key Indicator
(Color White)
Grommet Key (8 at 45°)
CODE T - TUBING
ADAPTER
ØC
Ref
Spilt Helical Convoluted
Tubing (Not Supplied)
CODE G
GLAND NUT
ØM
Ref ØN
D38999
Series III
ØB
www.glenair.com E-Mail:sales@glenair.com
GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912
B
B-35
© 2012 Glenair, Inc. U.S. CAGE Code 06324 Printed in U.S.A.
MIL-DTL-38999
Series III Type
Table I
Shell
Size A Thread ØB
Max
Std. Conduit
Size Ref.
D
Max
E
Max
F
Max
G
Max
H
Approx
J
Approx
K
Ref
L
Hex
ØM
Ref
ØN
Max
Insert
Arrangement
No. Of
Holes
11 M X  - H . / . . . . . . . . . . -
13 M X  - H . / . . . . . . . . . . -
15 M X  - H . / . . . . . . . . . . -
17 M X  - H . / . . . . . . . . . . -
19 M X  - H . / . . . . . . . . . . - 
21 M X  - H . / . . . . . . . . . . - 
23 M X  - H . . . . . . . . . . . - 
25 M X  - H . . . . . . . . . . . - 
25-8 M X  - H .  / . . . . . . . . . . -
25-37 M X  - H .  / . . . . . . . . . . - 
Table II
Entry
Size
ØC Ref
Code T & TN
ØC Ref
Code K
Optional Conduit
Size Ref.
03 . . /
04 . - /
05 . . /
06 . . /
07 . . /
08 . . /
10 . . /
11 . . /
13 . . /
15 . .
17 . .  /
377-014
Composite Backshell
for Fiber Optic MIL-DTL-38999 Series III & IV Connectors
J Approx
on
C
L
K Rad Ref
CODE T - 45°
F
G
H Approx
on
C
L
O-Ring D
E
CODE W - 90°
1.0 (25.4) Radius
Ref
K Rad Ref
Mating Nut Must
Bottom On Shoulder
Stop
HOLE
PATTERN
Ø .120 (3.0)
See Table I
for No.
of Holes
(see note 4)
Cavity
Ident.
Insert Ident.
See Table I
A
B
E
C
D
Ø .20
8 Places
Applicable
to 25-8 Only
1
25-8
2
3
4
5
6
7
8
SHRINK BOOT
ADAPTER
1.00
Max
Anti-Rotation
Device
ØM
Ref CODE K - PEEK TUBING
ADAPTER WITH NUT
CODE TN - PLASTIC TUBING
ADAPTER WITH NUT
1.75 Max
ØC
Ref
Nut
Table III: Material and Finish
Code Material Finish Description
-
Composite
Dash (-) For No Plating, Amber Color
XB No Plating - Black Color
XM Electroless Nickel
XW Cadmium Olive Drab Over Electroless Nickel
XMT Nickel-PTFE, Grey
Refer to Appendix for material/nish details