Conduit
Systems
Basic Part No.
Conduit Size Code
(See Table I)
A Thread Code
(See Table II)
.531 (13.5)
±
.010 (.3)
A Thread
.125 (3.2) Ref.
L
D Dia
K Dia
Straight Knurl
(Medium Coarse)
STYLE 01
FOR USE WHEN K DIAMETER IS
SMALLER THAN E DIAMETER
© 6/1999 Glenair, Inc.
M24758/14 Adapter for
MIL-C-28840 (EC) Backshells
M24758/14-16-01-01-A
Material Designator:
A = Aluminum
B = Brass
C = CRES 316
Style Designator
.125 (3.2) Ref.
.531 (13.5)
±
.010 (.3)
A Thread
L
D
Dia
E
Dia
N
K
Dia Dia
C Thread
C Thread
.250 (6.4) Ref.
Straight Knurl
(Medium Coarse)
STYLE 02
FOR USE WHEN K DIAMETER
IS EQUAL TO OR LARGER THAN E DIAMETER
1. The M24758/14 adapter provides a non-environmental coupling between certain MIL-C-28840 (EC) backshells and
the M24758/2, M24758/3 or M24758/4 fittings, specifically, the A-thread of this adapter mates with the V-thread of
the M28840/6 backshell (straight), the M28840/8 backshell (90
o
), or the M28840/9 backshell (45
o
).
2. Metric dimensions (mm) are indicated in parentheses.
3. For complete dimensions see applicable Military Specification.
CAGE Code 06324
Printed in U.S.A.
GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912
72
M24758/14 Adapter for
MIL-C-28840 (EC) Backshells
TABLE I
Conduit
Size
Code
02
03
04
05
06
08
10
12
16
20
24
C
Thread
(Class 2A)
0.438 - 28 UNEF
0.563 - 24 UNEF
0.688 - 24 UNEF
0.813 - 20 UNEF
0.938 - 20 UNEF
1.250 - 18 UNEF
1.563 - 18 UNEF
1.875 - 16 UN
2.375 - 16 UN
2.875 - 16 UN
3.375 - 16 UN
±
.02
.210
.250
.250
.310
.310
.370
.370
.430
.430
.430
.430
L
(.5)
(5.3)
(6.4)
(6.4)
(7.9)
(7.9)
(9.4)
(9.4)
(10.9)
(10.9)
(10.9)
(10.9)
K
Dia
Min.
.250 (6.4)
.370 (9.4)
.500 (12.7)
.620 (15.7)
.750 (19.1)
1.000 (25.4)
1.250 (31.8)
1.500 (38.1)
2.000 (50.8)
2.500 (63.5)
3.000 (76.2)
N
Dia
±
.02 (.5)
.687 (17.4)
.812 (20.6)
.937 (23.8)
1.062 (27.0)
1.187 (30.1)
1.500 (38.1)
1.812 (46.0)
2.125 (54.0)
2.625 (66.7)
3.125 (79.4)
3.625 (92.1)
TABLE II (A Thread Code and Adapter Dimensions)
Shell
A
Size
Thread
(Ref.)
Code
B, C
01
B, C
02
C
03
D, E
04
C, D, F
05
D, E, F, G
06
F, G, H
07
G, H, J
08
J
09
C, D, E
10
C, D, E, F, G
11
D, E, F, G
12
F, G, H
13
G, H, J
14
J
15
A
Thread
(Class 2B)
0.625 - 24 UNEF
0.750 - 20 UNEF
0.875 - 20 UNEF
1.000 - 20 UNEF
1.188 - 18 UNEF
1.438 - 18 UNEF
1.750 - 18 UNS
2.000 - 18 UNS
2.250 - 16 UN
1.125 - 18 UNEF
1.250 - 18 UNEF
1.626 - 18 UNEF
1.875 - 18 UNS
2.125 - 16 UN
2.750 - 16 UN
D
Dia
±
.015 (.4)
.875 (22.2)
1.000 (25.4)
1.125 (28.6)
1.250 (31.8)
1.438 (36.5)
1.688 (42.9)
2.000 (50.8)
2.250 (57.2)
2.250 (57.2)
1.375 (34.9)
1.500 (38.1)
1.875 (47.6)
2.125 (54.0)
2.375 (60.3)
3.000 (76.2)
E
Dia
±
.015 (.4)
.435 (11.0)
.578 (14.7)
.703 (17.9)
.828 (21.0)
1.000 (25.4)
1.250 (31.8)
1.562 (39.7)
1.813 (46.1)
2.062 (52.4)
.938 (23.8)
1.078 (27.4)
1.438 (36.5)
1.688 (42.9)
1.938 (49.2)
2.563 (65.1)
© 6/1999 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
73
Conduit
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