MIL-DTL-38999 Series I Type Connectors
with PCB contacts
LJT07R jam nut receptacle
C
T
.328 MAX.
Z
PCB TAIL STICKOUT
A*
N
.062 .001 DIA.
FOR SIZE 16 CONTACT
.019 .001 DIA.
FOR SIZE 20 & 22D
CONTACTS
V THREAD
.062 MIN.
.125 MAX PANEL THICKNESS
RR
THREAD
H
S
.915 .005
HOW TO ORDER
• Order by applicable 88/91 part number in table below.
88 prefix designates olive drab cadmium plated connector shell.
91 prefix designates electroless nickel plated connector shell.
• Add insert arrangement to end of number. Refer to insert availability chart on page 4 and
pin-out illustrations on pages 5-24. Last letter of part number designates rotation; P for
pins in normal position, S for sockets in normal position. See page 25 for alternate rota-
tion letter to use.
Example part number: 88-569721-35P designates shell size 9 with a 9-35 insert and pin
contacts in normal position.
• Z dimension is determined by contact type in the insert arrangement.
• Most common options are shown; other options are available.
★
*
.059 dia. min. 3 lockwire holes.
Formed lockwire hole design (6 holes) is optional.
“D” shaped mounting hole dimensions
Z
Shell
Size
9
11
13
15
17
19
21
23
25
Part Number
88/91-569721-XXX
722-XXX
723-XXX
724-XXX
725-XXX
726-XXX
727-XXX
728-XXX
729-XXX
A*
+.000
–.010
.669
.769
.955
1.084
1.208
1.333
1.459
1.580
1.709
C
Max.
1.199
1.386
1.511
1.636
1.761
1.949
2.073
2.199
2.323
H Hex
+.017
–.016
.875
1.000
1.188
1.312
1.438
1.562
1.688
1.812
2.000
L
Max.
.625
.625
.625
.625
.625
.656
.750
.750
.750
N
+.001
–.005
.572
.700
.850
.975
1.100
1.207
1.332
1.457
1.582
S
±.016
1.062
1.250
1.375
1.500
1.625
1.812
1.938
2.062
2.188
T*
+.010
–.000
.697
.822
1.007
1.134
1.259
1.384
1.507
1.634
1.759
V Thread
Class 2A
(Plated)
.4375-28 UNEF
.5625-24 UNEF
.6875-24 UNEF
.8125-20 UNEF
.9375-20 UNEF
1.0625-18 UNEF
1.1875-18 UNEF
1.3125-18 UNEF
1.4375-18 UNEF
RR Thread
Class 2A
(Plated)
Size
16 & 20
Contacts
Size 22D
Contacts
.6875-24 UNEF .229 – .175 .243 – .182
.8125-20 UNEF .229 – .175 .243 – .182
1.0000-20 UNEF .229 – .175
1.1250-18 UNEF .229 – .175
1.2500-18 UNEF .229 – .175
1.3750-18 UNEF .207 – .158
1.5000-18 UNEF .207 – .158
1.6250-18 UNEF .207 – .158
1.7500-18 UNS
.207 – .158
.243 – .182
.243 – .182
.243 – .182
.221 – .165
.221 – .165
.221 – .165
.221 – .165
All dimensions for reference only.
31