QPL QUALIFIED
MIL-DTL-38999 Series IV, Breech Coupling
38999/44 jam-nut mount receptacle
with rear release crimp contacts
QPL Part Number Development
Sample Part Number
MIL-DTL-38999
D38999/44
W
J
30
P
N
38999/44 = Jam-Nut receptacle
F = Environmental, aluminum, electroless nickel, conductive, -ꢀꢁ°C to +ꢂꢃꢃ°C
W = Environmental, aluminum, cadmium olive drab, conductive, -ꢀꢁ°C to +ꢄꢅꢁ°C
G = Environmental, aluminum, electroless nickel, conductive, -ꢀꢁ°C to +ꢂꢃꢃ°C (space-grade)
Class
Shell Size
B, C, D, E, F, G, H, J
Insert Arrangement
Per MIL-STD-ꢄꢁꢀꢃ; See reference section for details
P = Pin Insert
S = Socket Insert
A = Pin Gender, Less Contacts
B = Socket Gender, Less Contacts
Contact Style
Polarization
N (Normal), A, B, C, D, K, L, M, R; see polarization positions table
.028-.051
(0.72-1.29)
MASTER KEY, COLOR BLUE
øK
1.260 (32.00)
.075-.087
(1.9-2.2)
BLUE COLOR BAND
2X S
MAX
MASTER KEY
(COLOR BLUE)
1.083-1.118
(27.51-28.39)
WIRE SEALING
GROMMET
.071-.126
(1.8-3.2)
PANEL THK
O RING
øA
H THREAD
XX
øC
MAX
B
øF
øJ
(FLAT)
G THREAD
INSULATOR
LOCKING RING
FULL MATE
INDICATOR
(BLUE)
JAM NUT
(D38999/28-*)
YY
Panel Cut-Out Dimesions
øKK
Shell Size
Shell Size
Shell Size
Code
ØKK
BB
Shell Size
Code
ØKK
BB
BB
1.020 (25.90)
1.010 (25.65)
.955 (24.26)
.945 (24.01)
1.520 (38.60) 1.460 (37.08)
1.510 (38.35) 1.450 (36.83)
11
B
19
F
1.145 (29.08) 1.085 (27.56)
1.645 (41.78) 1.585 (40.26)
1.635 (41.53) 1.575 (40.01)
13
15
17
C
D
E
21
23
25
G
H
J
1.135 (28.83)
1.075 (27.31)
1.270 (32.26)
1.210 (30.73)
1.770 (44.95) 1.710 (43.43)
1.760 (44.70) 1.700 (43.17)
JAM-NUT MOUNT RECEPTACLE
RECOMMENDED PANEL CUTOUT
1.260 (32.01) 1.200 (30.48)
1.395 (35.43)
1.385 (35.18)
1.335 (33.91)
1.325 (33.66)
1.895 (48.13) 1.835 (46.61)
1.885 (47.88) 1.825 (46.36)
48
© 2017 Glenair, Inc • 1211 Air Way, Glendale, CA 91201 • 818-247-6000 • www.glenair.com • U.S. CAGE code 06324 • MIL-DTL-38999 Series III and IV
Dimensions in inches (millimeters) are subject to change without notice
Rev. 04.04.18