M28840/8
90° EMI/RFI Environmental Backshell
Style Designator
Military
Designator
Dash Number
A
- EMI / Environmental
B
- Environmental
M28840/8
16
W
A
Material and Finish Designator
W
- Aluminum, Cadmium Plate,
Olive Drab over Electroless Nickel
D
- Corrosion Resistant Steel,
Cadmium Plate, Black
A Thread
F
A Thread
F
C
B
C
B
N
V Thread
H
V Thread
Cable
Range
Y
Cable
Range
Y
BACKSHELL STYLE B
BACKSHELL STYLE A
© 2013 Glenair, Inc.
CAGE Code 06324
Printed in U.S.A.
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-Mail: sales@glenair.com
www.glenair.com
B-23
MIL-DTL
28840
B
MIL-DTL
28840
Backshell
Size
A
A
Dash
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
Designator
A (11)
B (13)
B (13)
C (15)
C (15)
C (15)
C (15)
D (17)
D (17)
D (17)
E (19)
E (19)
F (23)
F (23)
F (23)
G (25)
G (25)
G (25)
G (25)
H (29)
H (29)
M28840/8
90° EMI/RFI Environmental Backshell
A
Thread Class
2B
.750-20 UNEF
.875-20 UNEF
B Max.
Diameter
1.028 (26.11)
1.141 (28.98)
C
Max.
Diameter
1.188
(30.17)
D
Max.
Diameter
1.031 (26.19)
B
B
A
B
C
D
A
B
C
A
B
A
B
C
A
B
C
D
A
B
1.00-20 UNEF
1.263 (32.08)
1.438
(36.52)
1.156 (29.36)
1.125-18 UNEF
1.387 (35.23)
1.688
(42.87)
1.281 (32.54)
1.250-18 UNEF
1.513 (38.43)
1.438-18 UNEF
1.703 (43.51)
1.938
(49.22)
1.406 (35.71)
1.562-18 UNEF
1.825 (46.35)
2.188
(54.43)
1.531 (38.89)
1.875-16 UN
2.143 (54.43)
© 2013 Glenair, Inc.
CAGE Code 06324
Printed in U.S.A.
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-Mail: sales@glenair.com
www.glenair.com
B-24
M28840/8
90° EMI/RFI Environmental Backshell
Cable Range
Backshell
Size
A
A
B
A
B
C
D
A
B
C
A
B
A
B
C
A
B
C
D
A
B
Dash
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
Designator
A (11)
B (13)
B (13)
C (15)
C (15)
C (15)
C (15)
D (17)
D (17)
D (17)
E (19)
E (19)
F (23)
F (23)
F (23)
G (25)
G (25)
G (25)
G (25)
H (29)
H (29)
Max.
.312 (7.92)
.312 (7.92)
.438 (11.12)
.312 (7.92)
.438 (11.12)
.562 (14.27)
.750 (19.05)
.625 (15.87)
.750 (19.05)
.938 (23.82)
.625 (15.87)
.938 (23.82)
.750 (19.05)
.938 (23.82)
1.188 (30.17)
.938 (23.82)
1.188 (30.17)
1.250 (31.75)
1.380 (35.05)
1.188 (30.17)
1.380 (35.05)
Min.
.188 (4.77)
.188 (4.77)
.281 (7.14)
.188 (4.77)
.281 (7.14)
.344 (8.74)
.438 (11.12)
.375 (9.82)
.438 (11.12)
.625 (15.87)
.375 (9.52)
.625 (15.87)
.438 (11.12)
.625 (15.87)
.812 (20.62)
.625 (15.87)
.812 (20.62)
.875 (22.23)
1.000 (25.40)
.812 (20.62)
1.000 (25.40)
1.531 (38.89)
1.406 (35.71)
1.531 (38.89)
1.406 (25.71)
1.531 (38.89)
1.781 (45.24)
1.531 (38.89)
1.781 (45.24)
2.156 (54.76)
1.781 (45.24)
2.156 (54.76)
3.614
(91.80)
3.364
(85.45)
1.406 (35.71)
3.114
(79.10)
1.281 (32.54)
2.864
(72.75)
1.156 (29.36)
2.614
(66.40)
E Max. Dim.
F Max.
Dim.
V Thread Class
2
.625-24 UNEF
.625-24 UNEF
.750-20 UNEF
.625-24 UNEF
.750-20 UNEF
.875-20 UNEF
1.188-18 UNEF
1.000-20 UNEF
1.188-18 UNEF
1.438-18 UNEF
1.00-20 UNEF
1.438-18 UNEF
1.188-18 UNEF
1.438-18 UNEF
1.750-18 UNEF
1.438-18 UNEF
1.750-18 UNS
2.000-16 UNS
1.750-18 UNS
2.000-18 UNS
© 2013 Glenair, Inc.
CAGE Code 06324
Printed in U.S.A.
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-Mail: sales@glenair.com
www.glenair.com
B-25
MIL-DTL
28840
B
MIL-DTL
28840
Backshell
Size
A
A
B
Dash
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
Designator
A (11)
B (13)
B (13)
C (15)
C (15)
C (15)
C (15)
D (17)
D (17)
D (17)
E (19)
E (19)
F (23)
F (23)
F (23)
G (25)
G (25)
G (25)
G (25)
H (29)
H (29)
M28840/8
90° EMI/RFI Environmental Backshell
X
Ref.
Dimension
Y
Ref.
Dimension
.938 (23.82)
.938 (23.82)
1.125 (28.57)
H
Max.
Style A
5.332 (134.43)
5.332 (134.43)
5.332 (134.43)
5.457 (138.61)
5.457 (138.61)
5.457 (138.61)
5.682 (144.32)
5.682 (144.32)
5.713 (145.11)
5.807 (147.50)
5.682 (144.32)
5.832 (148.13)
5.738 (145.28)
5.832 (148.13)
6.019 (152.88)
5.832 (148.13)
6.019 (152.88)
6.144 (156.06)
6.176 (156.87)
6.144 (156.06)
6.176 (156.87)
N
Max.
Style B
2.962 (75.23)
2.962 (75.23)
2.962 (75.23)
3.087 (78.41)
3.087 (78.41)
3.087 (78.41)
3.312 (84.12)
3.312 (84.12)
3.343 (84.91)
3.437 (87.30)
3.312 (84.12)
3.462 (87.93)
3.368 (85.55)
3.462 (87.93)
3.649 (92.68)
3.462 (87.93)
3.649 (92.68)
3.774 (95.86)
3.806 (96.62)
3.774 (95.86)
3.806 (96.62)
B
A
B
C
D
A
B
C
A
B
A
B
C
A
B
C
D
A
B
1.281 (32.54)
.938 (23.82)
1.125 (28.57)
1.312 (33.32)
1.593 (40.62)
1.312 (33.32)
1.312 (33.32)
1.406 (35.71)
1.281 (32.54)
1.406 (35.71)
1.312 (33.32)
1.406 (35.71)
1.593 (40.46)
1.406 (35.71)
1.593 (40.46)
1.593 (40.46)
1.625 (41.28)
1.593 (40.46)
1.625 (41.28)
1.593 (40.62)
1.750 (44.45)
1.312 (33.32)
1.750 (44.45)
1.593 (40.62)
1.750 (44.45)
2.093 (53.16)
1.750 (44.45)
2.093 (53.16)
2.093 (53.16)
2.343 (59.51)
2.093 (53.16)
2.343 (59.51)
© 2013 Glenair, Inc.
CAGE Code 06324
Printed in U.S.A.
GLENAIR, INC.
•
1211 AIR WAY
•
GLENDALE, CA 91201-2497
•
818-247-6000
•
FAX 818-500-9912
E-Mail: sales@glenair.com
www.glenair.com
B-26
M28840/8
90° EMI/RFI Environmental Backshell
Backshell
Size
A
A
B
C
C
D
E
Dash
Number
22
23
24
25
26
27
28
Designator
J (33)
J (33)
A
(11)
A
(11)
B
(13)
B
(13)
C
(15)
A
Thread
Class 2B
2.062-16 UNS
B
Max. Diameter
2.329 (59.16)
C
Max. Diameter
2.688 (68.26)
1.188 (30.17)
1.438 (36.52)
D
Max. Diameter
1.781 (45.24)
1.031 (26.19)
1.156 (29.36)
.750-20 UNEF
1.028 (26.11)
.875-20 UNEF
1.000-20 UNEF
Cable Range
1.141 (28.98)
1.263 (32.08)
1.688 (42.87)
1.281 (32.54)
Backshell
Size
A
A
B
C
C
D
E
Dash
Number
22
23
24
25
26
27
28
Designator
J (33)
J (33)
A
(11)
A
(11)
B
(13)
B
(13)
C
(15)
Max.
1.380 (35.05)
1.625 (41.26)
.438 (11.12)
.562 (14.27)
.562 (14.27)
.625 (15.87)
.625 (15.87)
Min.
1.000 (25.40)
1.250 (31.75)
.281 (7.14)
.344 (8.74)
.344 (8.74)
.375 (9.52)
.375 (9.50)
E
Max.
Dimensions
2.281 (57.94)
1.156 (29.36)
1.281 (32.54)
F
Max.
Dimensions
4.114 (104.50)
2.614 (66.40)
2.864 (72.75)
V
Thread
Class 2
2.000-18 UNS
2.250-16 UNS
.750-20 UNEF
.875-20 UNEF
1.406 (35.71)
3.114 (79.10)
1.000-20 UNEF
Backshell
Size
A
A
B
C
C
C
B
© 2013 Glenair, Inc.
Dash
Number
22
23
24
25
26
27
28
Designator
J (33)
J (33)
A (11)
A (11)
B (13)
B (13)
C (15)
X
Ref.
Dimensions
1.625 (41.28)
1.900 (48.26)
Y
Ref.
Dimensions
2.343 (59.51)
2.750 (59.85)
1.125 (28.57)
H
Max.
Style A
6.426 (163.22)
6.701 (170.21)
5.332 (135.43)
5.457 (138.61)
N
Max.
Style B
4.056 (103.02)
4.33 (110.01)
2.962 (75.23)
3.087 (78.41)
3.087 (78.41)
3.312 (84.12)
3.312 (84.12)
Printed in U.S.A.
1.281 (32.54)
1.312 (33.32)
5.457 (138.61)
5.682 (144.32)
5.682 (144.32)
CAGE Code 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
B-27
MIL-DTL
28840
B
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