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B-57
Dimensions in inches (millimeters) and are subject to change without notice.
© 2013 Glenair, Inc. U.S. CAGE Code 06324 Printed in U.S.A.
AS85049
B
Mil-Spec Backshells Rev. 8.29.14
AS85049/31, MS3416 and MIL-DTL-85723/15N
Self-Locking and Non-Self-Locking E-Nut
A
Thread
G
F
Self-Locking
E
TABLE I: Shell Size, Thread and Dimensions
Shell
Size
A Thread
Class 2B
Ø E
Max
F
Max
Ø G
Max
3.562 - 24 UNEF .270 (6.9) -- --
8.500 - 20 UNF .270 (6.9) .710 (18.0) .885 (22.5)
10 .625 - 24 UNEF 375 (9.5) .710 (18.0) 1.010 (25.7)
12 .750 - 20 UNEF .511 (13.0) .710 (18.0) 1.135 (28.8)
14 .875 - 20 UNEF .585 (14.9) .710 (18.0) 1.260 (32.0)
16 1.000 - 20 UNEF .710 (18.0) .710 (18.0) 1.385 (35.2)
18 1.062 - 18 UNEF .789 (20.0) .710 (18.0) 1.510 (38.4)
20 1.188 - 18 UNEF .914 (23.2) .710 (18.0) 1.635 (41.5)
22 1.313 - 18 UNEF 1.039 (26.4) .710 (18.0) 1.760 (44.7)
24 1.438 - 18 UNEF 1.154 (29.3) .710 (18.0) 1.885 (47.9)
28 1.750 - 18 UNS 1.389 (35.3) .890 (22.6) 2.135 (54.2)
32 2.000 - 18 UNS 1.635 (41.5) .890 (22.6) 2.395 (60.8)
36 2.250 - 16 UN 1.850 (47.0) .890 (22.6) 2.635 (66.9)
40 2.500 - 16 UN 2.065 (52.5) .890 (22.6) 2.885 (73.3)
44 2.750 - 16 UN 2.320 (58.9) .890 (22.6) 3.135 (79.6)
48 3.000 - 16 UN 2.570 (65.3) .890 (22.6) 3.385 (86.0)
61 1.500 - 18 UNEF 1.194 (30.3) -- --
CONNECTOR DESIGNATOR:
A
AS50151 Series AS34001 Crimp,
MIL-DTL-26482 Series II,
SAE AS81703 Crimp Series III,
MIL-DTL-83723 Series I,
MIL-DTL-83723 Series III
M83723/15N-10 A
Basic Part No.
(Non-Self-
Locking Only)
Superseded Part Number
Dash
No. Finish Designator
A = Non-Conductive, Black Anodize
R = Conductive, Electroless Nickel
MS3416 -10-E A
Superseded Part Number
Metal and Finish Designator
A = Aluminum 500 Hour Cad. Olive
Drab Over Electroless Nickel
C = Aluminum, Cadmium Olive Drab
G = Aluminum, Black Anodize
N = Aluminum, Electroless Nickel
Basic Part No.
(Non-Self-
Locking Only)
Dash No.
Style
APPLICATION NOTES
1. For complete dimensions, see the applicable
Military Specication.
2. Metric dimensions (mm) are indicated in
parentheses.
Basic Part
Number
M85049/31 S 22 W
Shell
Size
S = Self-Locking
N = Non-Detented
Use Dash for
Non-Self-Locking
Finish
A = Anodize, Black
N = Electroless Nickel
W = 1,000 Hour Cadmium Olive Drab
over Electroless Nickel
X = Nickel Fluorocarbon Polymer
Y = Pure Dense Electrodeposited
Aluminum
Z = Zinc-Nickel, Black
