SERIES 3 INDEX
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Jam Nut Receptacle
D38999/24

� Red band indicates fully mated
�� Blue band indicates rear release contact retention system
* .059 dia. min.
3 lockwire holes 2.32 dia min.
Formed lockwire hole design (6 holes) is optional

Inches

Shell Size

MS Shell
Size Code

A�
+.000
� .010

B Thread
Class 2A
0.1P-0.3L-TS
(Plated)

C
Max.

H Hex
+.017
�.016

S
�.010

T�
+.010
� .000

9
A
.669
.6250
1.199
.875
1.062
.697
11
B
.769
.7500
1.386
1.000
1.250
.822
13
C
.955
.8750
1.511
1.188
1.375
1.007
15
D
1.084
1.0000
1.636
1.312
1.500
1.134
17
E
1.208
1.1875
1.761
1.438
1.625
1.259
19
F
1.333
1.2500
1.949
1.562
1.812
1.384
21
G
1.459
1.3750
2.073
1.688
1.938
1.507
23
H
1.575
1.5000
2.199
1.812
2.062
1.634
25
J
1.709
1.6250
2.323
2.000
2.188
1.759

Millimeters

Shell Size

MS Shell
Size Code

A�
+.00
� .25

C
Max.

H Hex
+.43
� .41

S
�.25

T�
+.25
� .00

V
Thread Metric

9
A
16.99
30.45
22.23
26.97
17.70
M12X1-6g
11
B
19.53
35.20
25.40
31.75
20.88
M15X1-6g
13
C
24.26
38.38
30.18
34.93
25.58
M18X1-6g
15
D
27.53
41.55
33.32
38.10
28.80
M22X1-6g
17
E
30.68
44.73
36.53
41.28
31.98
M25X1-6g
19
F
33.86
49.50
39.67
46.02
35.15
M28X1-6g
21
G
37.06
52.65
42.80
49.23
38.28
M31X1-6g
23
H
40.01
55.85
46.02
52.37
41.50
M34X1-6g
25
J
43.41
59.00
50.80
55.58
44.68
M37X1-6g

All dimensions for reference only

� D shaped panel cut-out dimensions

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