Environmental
Backshells
CONNECTOR DESIGNATOR:
AS50151 Series AS34001
MIL-DTL-26482 Series II
AS81703 Series III
MIL-DTL-83723 Series I & III
40M39569, DEF 5326-3, EN 2997
EN 3646, ESC 10, ESC 11, LN 29504
NFC93422 Series HE302
PAN 6432-1, PAN 6432-2, PATT 602
AS85049/7 and MS3189B
45° Environmental Backshell
Superseded
PART NUMBER
Basic
Part Number
Dash Number
(Table II)
MS3189B 21 N
A
M85049/7
-
21
N
Basic
Part No.
Dash
No.
APPLICATION NOTES
1.
2.
3.
4.
For complete dimensions
see the applicable Military
Specification.
Metric dimensions (mm) are
in parentheses.
When maximum cable entry
is exceeded, Style 2 will be
supplied.
Cable Range is defined as
the accommodation range
for the wire bundle or cable.
Dimensions shown are
not intended for inspection
criteria.
Approximate chain lengths:
Dash No. 01-12 = 5.0
(127.0); Dash No. 13-29 =
6.0 (152.4).
37
Finish / Material
B
= Black Cadmium / Stainless Steel
N
= Electroless Nickel / Aluminum
S
= Passivated / Stainless Steel
W
= 1,000 Hr. Cadmium Olive Drab
over Electroless Nickel / Aluminum
X
= Nickel Fluorocarbon Polymer
Y
= Pure Dense Electrodeposited Aluminum
Z
= Zinc Nickel
(Material is Aluminum Only)
A
=
Cadmium Olive Drab over Nickel
C
=
Cadmium Olive Drab
N
=
Electroless Nickel
Finish
5.
TABLE II: Dash Number and Cable Range
Dash Shell
No. Size
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
03
03
08
10
10
12
12
12
14
14
16
16
18
18
20
20
22
22
24
24
28
F
Max
.688 (17.5)
1.500 (38.1)
.625 (15.9)
.688 (17.5)
.688 (17.5)
.750 (19.1)
.750 (19.1)
.750 (19.1)
.812 (20.6)
.812 (20.6)
.906 (23.0)
.906 (23.0)
1.093 (27.8)
1.093 (27.8)
1.093 (27.8)
1.093 (27.8)
1.188 (30.2)
1.188 (30.2)
1.188 (30.2)
1.188 (30.2)
1.312 (33.3)
G
± .125 (3.2)
1.852 (47.0)
1.972 (50.1)
1.244 (31.6)
1.912 (48.6)
1.307 (33.2)
1.972 (50.1)
1.972 (50.1)
1.972 (50.1)
2.062 (52.4)
1.717 (43.6)
2.172 (55.2)
1.812 (46.0)
2.362 (60.0)
2.000 (50.8)
2.362 (60.0)
2.000 (50.8)
2.512 (63.8)
2.155 (54.7)
2.512 (63.8)
2.093 (53.2)
2.500 (63.5)
K
Ref.
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.027 (26.1)
1.059 (26.9)
1.027 (26.1)
1.156 (29.4)
1.027 (26.1)
1.156 (29.4)
1.059 (26.9)
1.375 (34.9)
1.059 (26.9)
1.375 (34.9)
1.156 (33.7)
L
Max
.957 (24.3)
1.145 (29.1)
.957 (24.3)
.957 (24.3)
1.145 (29.1)
.957 (24.3)
1.145 (29.1)
1.332 (33.8)
1.145 (29.1)
1.332 (33.8)
1.145 (29.1)
1.551 (39.4)
1.332 (33.8)
1.770 (45.0)
1.332 (33.8)
1.770 (45.0)
1.551 (39.4)
2.113 (53.7)
1.551 (39.4)
2.113 (53.7)
1.770 (45.0)
Cable Range
Min
Max
.125 (3.2) .250 (6.4)
.250 (6.4) .437 (11.1)
.125 (3.2) .250 (6.4)
.125 (3.2) .312 (7.9)
.250 (6.4) .375 (9.5)
.125 (3.2) .312 (7.9)
.250 (6.4) .437 (11.1)
.350 (8.9) .500 (12.7)
.250 (6.4) .437 (11.1)
.350 (8.9) .575 (14.6)
.250 (6.4) .437 (11.1)
.500 (12.7) .700 (17.8)
.350 (8.9) .625 (15.9)
.625 (15.9) .779 (19.8)
.350 (8.9) .625 (15.9)
.625 (15.9) .904 (23.0)
.500 (12.7) .750 (19.1)
.875 (22.2) 1.029 (26.1)
.500 (12.7) .750 (19.1)
.875 (22.2) 1.144 (29.1)
.625 (15.9) .937 (23.8)
M85049/42
Ref.
4
6
4
4
6
4
6
10
6
10
6
12
10
16
10
16
12
20
12
20
16
Printed in U.S.A.
Table Continued on Page 37-21
© 2012 Glenair, Inc.
CAGE Codes 06324
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-Mail: sales@glenair.com
www.glenair.com
37-20
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