MIL-DTL-38999
Series III Type
189-037
Environmental Backshell with Banding Strain Relief
for MIL-DTL-38999 Series III Fiber Optic Connectors
D38999
Series III
MIL-DTL-38999 Series III backshell with strain relief and flexible bend restrictor
B
How To Order
Material/
Angular
Finish
Dash No.
Product Function
(Table II)
(Table III)
Series N, M, or S
189 H S 037 M 17 07 - 3
Basic No. Shell Size Length In 1/2 Inch
Connector
(Table I) Increments
Designator,
(Example: 3 = 1.5
H = MIL-DTL-38999,
Inches)
Series III
O-Ring
O-Ring
X
Anti-rotation Device Length
Cable Seal
Flexible Bend
A Thread
Restrictor
K
B
Cable Range
CODE S
Knurl Style Mfr W Hex Wrench Flats
1.50
Option
STRAIGHT
Banding Platform
Material and Finish
Adapter, Coupling Nut: See Table II
Strain Relief Components: Nylon 6/6 (Flame-resistant/zero Halogen)
Anti-Rotation Device: Torlon 42031-Natural
O-Rings: Fluorosilicone
Notes
Glenair 600 Series Backshell assembly tools are recommended for assembly and installation.
Standard minimum length: 1.5 inches, for shorter length consult factory.
MIL-I-23053/4 & /5 Shrink Sleeving to be packaged loose in a plastic bag.
MIL-I-23053/4 Shrink Sleeving to be heat shrunk over rear of Adapter before MIL-I-23053/5
Shrink Sleeving.
For assembly instruction see GAP-065
2012 Glenair, Inc. U.S. CAGE Code 06324 Printed in U.S.A.
GLENAIR, INC. 1211 AIR WAY GLENDALE, CA 91201-2497 818-247-6000 FAX 818-500-9912
www.glenair.com B-32 E-Mail: sales@glenair.com189-037
Environmental Backshell with Banding Strain Relief
for MIL-DTL-38999 Series III Fiber Optic Connectors
Table I
E
Shell A Thread B C D E F
Size Iso Metric Max Max Max Max Max
B
11 M15 X 1 - 6H 1.06 (26.9) .861 (21.9) 1.111 (28.2) 1.563 (39.7) 1.875 (47.6)
13 M18 X 1 - 6H 1.17 (29.7) .911 (23.1) 1.161 (29.5) 1.938 (49.2) 2.250 (57.2)
15 M22 X 1 - 6H 1.29 (32.8) .965 (24.5) 1.215 (30.9) 1.938 (49.2) 2.250 (57.2)
17 M25 X 1 - 6H 1.42 (36.1) 1.014 (25.8) 1.264 (32.1) 2.063 (52.4) 2.375 (60.3)
F
.75 (19.1) R Min.
19 M28 X 1 - 6H 1.54 (39.1) 1.064 (27.0) 1.314 (33.4) 2.063 (52.4) 2.375 (60.3)
21 M31X 1 - 6H 1.67 (42.4) 1.118 (28.4) 1.368 (34.7) 2.563 (65.1) 2.875 (73.0)
CODE N
23 M34 X 1 - 6H 2.01 (51.1) 1.172 (29.8) 1.422 (36.1) 2.313 (58.8) 2.688 (68.3)
90
25 M37 X 1 - 6H 2.12 (53.8) 1.221 (31.0) 1.471 (37.4) 2.250 (57.2) 2.563 (65.1)
C
D
Table II: Material and Finish
Code Material Finish Description
M Electroless Nickel
Aluminum
Cadmium Plate, Olive Drab,
Alloy
NF
CODE M
Over Nickel
45
Refer to Appendix for material/finish details
2.0 1.0
Shrink Sleeving
MIL-I-23053/4
Shrink Sleeving
MIL-I-23053/5
Table III
Dash MIL-I-23053 MIL-I-23053
Cable Dia Range K 005 W Hex X
No. Shrink Sleeve Shrink Sleeve
05 .200/.285 .312 (8.0) .750 (19.1) 2.32 (58.9) /4-203-0 /5-107-0
07 .285/.390 .438 (11.1) .870 (22.1) 2.80 (71.1) /4-204-0 /5-108-0
09 .390/.550 .562 (14.3) 1.06 (26.9) 3.66 (93.0) /4-204-0 /5-109-0
11 .550/.670 .688 (17.5) 1.30 (33.0) 4.37 (111.0) /4-205-0 /5-109-0
2012 Glenair, Inc. U.S. CAGE Code 06324 Printed in U.S.A.
GLENAIR, INC. 1211 AIR WAY GLENDALE, CA 91201-2497 818-247-6000 FAX 818-500-9912
www.glenair.com B-33 E-Mail: sales@glenair.com
MIL-DTL-38999
Series III Type