MIL-DTL-38999, Series I LJT, II JT, III TV, HD
Insert Availability and Identification Chart
38999
III
II
I
SJT
Access
Aquacon
8-35
8-44
8-97
n
8-98
10-4
10-5
10-13
10-35
10-98
10-99
11-99
12-3
13-3
n
12-4
13-4
H
12-8
13-8
12-22
13-8
13-13
n
13-22
X
X
X
2
X
X
u
Series
Series
Series Military
JT II
8-2
n
8-3
n
8-6
LJT I
9-3
n
9-6
9-7
n
TV III
III
MIL-DTL-
27599
JT/LJT
Solder
Hermetics
Crimp Class Class TV*
H
Y
Service
Rating
Contact Size
Total
23
22D 22M 22 20 16 12 12
10
8
8††
(Coax) (Power) (Coax) (Twinax)
Contacts
HD
9-5
Hn
P
X
X
X
X
X
X
NA
X
X
P
P
P
P
P
P
M
M
2
3
2
3
Grounded
1
6
7
9
2
6
4
2
4
3
2
4
5
6
13
19
13
4
6
7
3
4
8
4
22
8
32
22
4
10
13
4
5
5
10
10
3
4
32
6
22
2
2
22
2
8
2** 2
19
13
4
6
7
3
4
13
4
5
6
2
9
2
6
4
2
2
3
2
6
7
1
M
M
N
I
P
M
M
M
M
P
I
I
I
9-9
n
9-22
n
9-35
9-44
9-35
9-94
n
9-98
11-2
H
11-4
11-5
B5
A98
B2
A35
X
X
X
X
u
P
P
P
P
P
P
9-98
11-2
H
11-4
11-5
11-6
n
11-13
11-35
11-98
X
S
X
X
X
X
S
X
X
X
X
X
3
2
X
X
X
X
X
X
u
P
P
P**
P
P/S
P/S
P/S
P/S
P/S
P/S
P
X
u
P
P
P
P/S
P/S
P/S
P/S
P/S
P/S
P
P
P
P
P
P
P/S
P/S
P/S
P/S
P/S
P/S
P
I
I
M
N
M
II
I
I
II
11-19
n
11-35
11-54
n
11-98
11-99
B35
B98
B99
X
X
X
P
P
P
X
X
X
X
X
X
X
X
X
X
P
X
X
X
X
P
P
P
P
P
P/S
P/S
P/S
P/S
P/S
P/S
13-4
H
C4
C8
P
P
I
I
I, Fiber
Optic
M
M
N
P
P
M
l
I
I
I
12-35
12-98
14-4
n
13-26
n
13-32
n
13-35
13-63
n
13-98
15-AT
n
15-4
n
15-5
H
D5
C35
C98
13-35
13-98
X
X
X
X
X
2
2
u
15-4
n
14-5
15-5
H
X
X
X
X
P
P
P
P
P
II
X
+
Completely tooled.
Majority of tooling is completed
(contact Amphenol Aerospace for availability).
u
Not tooled for 02-R.
P Available with Pin contacts only
S Available with Socket contacts only
P/S Available with Pin contacts or Socket contacts
H
Ground plane proprietary option available. Arrg. 9-5 is exclusively
ground plane type.
n
Not Mil-Qualified.
G
21-75 is Mil-Qualified with twinax contacts only.
Note: MS connector 21-75 is supplied with size 8 twinax.
Commercial connector 21-75 is supplied with size 8 coax.
*
**
***
†
††
(2)
(3)
(5)
HD
designates High Density 38999 Series III insert patterns which
use size 23 contacts only. Not rated over 175°C.
Hermetic inserts - solder termination standard. (Contact Amphenol
Aerospace for optional PCB or eyelet termination).
Two size 16 contacts dedicated to fiber optics. See the Fiber Optic
section for more information.
For use in MIL-STD-1760 applications (see pages 75 and 76).
For RG 180/U and RG 195/U cables only.
Size 8 Coax and Twinax are interchangeable.
Not Tooled for RP or 02RE
Pin inserts only, not tooled for RP or 02RE (Consult Amphenol
Aerospace for avail.)
MS Connector 21-79 has provision for two size 8 coax contacts.
Coax contacts are not supplied unless specified by customer.
2
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
MIL-DTL-38999, Series I LJT, II JT, III TV, HD
Insert Availability and Identification Chart
Series
Series
Series
Military
MIL-DTL-
27599
JT/LJT
Solder
Hermetics
Crimp Class Class
TV*
Service
Total
H
Y
Rating Contacts
HD
Contact Size
23
22D 22M 22
20
16 12
(Coax) (Coax) (Twinax)
38999
12
8
8††
4
JT II
14-15
LJT I
15-15
TV III
15-15
15-18
15-19
15-35
III
D15
D18
D19
D35
III
II
I
SJT
Access
Aquacon
14-18
15-18
14-19
n
15-19
14-35
15-35
14-37
15-37
15-55
n
14-68
n
15-68
n
14-97
15-97
17-2
15-97
17-2
17-EA
n
17-EC
n
17-6
17-8
H
D97
E2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2
X
X
X
X
u
P
P/S
P/S
P/S
P
P
P/S
P
P
P
P
P
P
P/S
P/S
P/S
P
P
P/S
P
P
P
P
P
P
P
P
P
I
I
I
I
M
M
N
15
18
19
37
37
55
8
12
39
19
41
6
8
13
4
24
26
55
42
2
55
10
73
23
17
23
11
18
28
30
15
32
66
53
66
67
18
9
88
79
88
79
66
67
66
53
12
14
6
8
73
55
55
42
22
38
10
32
55
37
37
14
18
19
1
X
X
1
P
I
M
M
M
8
8
3
9
4
1
2
4
6
8
13
2
26
2
2
16-6
17-6
16-8
17-8
H
16-13
n
17-13
n
17-22
n
17-22
Hn
17-25
n
17-25
n
16-26
17-26
16-35
17-35
16-42
17-42
n
17-52
n
16-55
17-55
17-60
n
17-73
n
16-99
17-99
17-99
19-AD
n
19-FA
n
E99
X
X
X
X
X
2
X
X
X
X
X
X
X
X
X
17-35
E35
X
17-26
E26
X
X
E8
E6
X
X
X
X
X
X
2
2
u
P
P
P
P/S
P
P
P
P/S
P
P
I
II
I
Coax
M
2
X
X
X
X
X
P
u
P/S
P/S
P
P
P/S
P/S
P
P
P
P
I
M
M
M
2
X
X
X
X
X
u
P/S
P/S
P/S
P/S
M
I/Coax
N
2
21
16
8
2
1
7
11
4
26
29
2
1
1
32
2
2
P
P
P
P
I
Inst.
M
18-11
19-11
H
19-11
H
19-18
19-18
18-28
19-28
n
19-28
18-30
19-30
n
19-31
n
18-32
19-32
18-35
19-35
18-53
19-53
n
18-66
19-66
19-67
n
18-68
n
19-68
n
19-68
n
18-96
n
19-88
n
20-1
21-1
19-35
F35
19-32
F32
F28
F11
F18
X
X
2
X
P
X
P
X
X
X
X
X
X
P
X
X
3
2
3
2
X
X
S
X
P
P
P
P
P
II
M
I
I
M
P/S
P/S
P
P
P/S
P/S
P
P
P
P
I
M
M
X
X
X
P
P
S
P
P
S
M
M
I
I
N
18
9
P
P/S
P
P/S
M
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
3
MIL-DTL-38999, Series I LJT, II JT, III TV, HD
Insert Availability and Identification Chart
38999
III
II
I
SJT
Access
Aquacon
20-35
20-39
20-41
Series
Series
Series
Military
JT II
20-2
20-11
n
20-16
LJT I
21-2
n
21-11
H
TV III
III
MIL-DTL-
27599
JT/LJT
Solder
Crimp
Hermetics
H
Y
TV*
Service
Rating
Total
HD
Contact Size
23
22D 22M 22
20 16 16 12 12
(Cx)
(Cx) (Power) (Power) (Cx) (Twinax)
10
8
8
8††
4
21-11
H
G11
G16
21-16
H
21-16
H
21-25
n
21-27
n
21-29
n
21-35
21-39
21-41
21-75
H
21-79
n
21-35
21-39
21-41
21-48
n
21-75
HG
21-79
n
21-121
n
X
X
X
X
X
3
X
X
X
X
X
X
X
X
X
X
2
2
X
X
X
X
P
2
2
u
u
M
I
P/S P/S
P
P
P
II
I
I
I
P
P
P
N
II
N
P/S P/S
P
P
P
P
P
P
M
M
M
I
P
P
P
P
P
P
P
II
I
I
P
P
P
M
I
M
I
M
II
II
N
M
M
P
P
P
I
M
Twx
Twinax
N
M
M
I
N
M
I
I
M
M
65
11
16
25
27
27
79
39
41
4
4
19
121
100
85
6
14
21
32
34
100
53
53
55
57
16
11
151
128
100
56
99
8
11
8
42
19
30
97
49
40
100
79
65
11
16
25
27
19 4
G35
G39
G41
G75
X
X
X
X
P
P
P/S P/S
P
P
P
P
P
P
P/S P/S
X
X
4
37 2
41
4
121
17
100
85
6
14
21
32
34
4
2
(4)
(2)
22-1
23-1
22-2
23-2
23-6
Hn
22-14
n
23-14
n
23-14
n
22-21
23-21
H
23-21
H
22-32
22-35
22-53
n
22-55
23-32
n
23-34
n
23-35
23-53
23-55
23-97
n
23-99
n
23-151
n
24-1
25-1
24-2
24-4
25-2
25-4
25-7
n
25-4
25-7
25-8
H
25-11***
25-16
n
25-17
n
J4
J7
J8
J11
23-35
23-53
23-54
n
23-55
23-63
n
H35
H53
H55
X
X
X
X
H21
X
X
X
X
X
23-6
Hn
X
X
X
X
X
X
P
X
X
P
X
X
X
X
S
P/S P/S
P
P
P/S P/S
P
P
53
9
55
4
16
11
151
128
100
48 8
2
2
6
19
10 13
4
3
9
8
6
2
4
4
X
X
X
X
X
X
X
u
P
P
P
P
2
u
u
24-19
n
25-19
H
25-19
H
25-20
n
25-20***
X
+
J19
J20
X
X
2
u
P
P
P
36
Completely tooled.
Majority of tooling is completed
(contact Amphenol Aerospace for availability).
u
Not tooled for 02-R.
P
Available with Pin contacts only
Available with Socket contacts only
S
P/S Available with Pin contacts or Socket contacts
H
Ground plane proprietary option available. Arrg. 9-5, 26-62 is exclusively
ground plane type.
n
Not Mil-Qualified.
G
21-75 is Mil-Qualified with twinax contacts only.
*
Hermetic inserts - solder termination standard. (Contact Amphenol
Aerospace for optional PCB or eyelet termination).
HD designates High Density 38999 Series III insert patterns which use
size 23 contacts only. Not rated over 175°C.
**
Two size 16 contacts dedicated to fiber optics. See the Fiber Optic
Section for more information.
***
For use in MIL-STD-1760 applications (see pages 75 and 76).
†
For RG 180/U and RG 195/U cables only.
††
Size 8 Coax and Twinax are interchangeable.
(2)
Not Tooled for RP or 02RE
(3)
Pin inserts only, not tooled for RP or 02RE (Consult Amphenol for avail.)
(4)
MS connector 21-75 is supplied with size 8 twinax.
Commercial connector 21-75 is supplied with size 8 coax.
(5)
MS Connector 21-79 has provision for two size 8 coax contacts.
Coax contacts are not supplied unless specified by customer.
(PWR) Suffix at end of part number to replace coax, twinax, and fiber contacts
with power contacts.
4
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
MIL-DTL-38999, Series I LJT, II JT, III TV, HD
Insert Availability and Identification Chart
Series
Series
Series
Military
MIL-DTL-
27599
JT/LJT
Solder
Hermetics
Crimp
X
X
F
Contact Size
Service
Total
23
22D 20
Rating Contacts
HD
I
I
I
24
25
29
128
37
41
43
46
61
12
46
187
8
60
66
22
3
23
40
61
40
187
31
49
12
4
11
13
4
2
4
2
2
8
4
4
2
128
37
11
20
4
2
2
3
16
29
16
12
12
12
12
5
4
12
10
8
8††
8
4
38999
III
II
I
SJT
Access
Aquacon
(Coax) (Twinax Quadrax
JT II
24-24
LJT I
TV III
III
J24
H
P
P
Y
P
P
TV*
(Fiber)
(Coax)
25-24
H
25-24
H
25-26
nH
24-29
25-29
H
25-29
H
24-35
25-35
24-37
25-37
H
25-37
H
25-41
n
24-43
n
25-43
25-46
24-61
25-61
25-61
25-62
nH
25-90
25-187
n
25-1A
n
25-AT
n
25-F4
n
25-43
25-46
25-35
J29
J35
J37
X
X
X
X
X
X
X
3
P
P
P
P
P
New
M
I
N
Inst.
J43
J46
J61
J90
X
X
X
2
2
X
X
X
u
u
u
I
I
P
P
P
P
P
I
I
I
N
N
M
M/I
u
X
X
TV SERIES III
SELECT SHELL SIZE - SPECIAL INSERT ARRANGEMENT
(Not Mil-Spec Qualified)
Shell Size-
Crimp
Insert Arrg.
9-2
X
15-4
X
15-25
X
17-20
X
21-12
X
21-21
X
21-99
X
25-92
X
25-97
X
Hermetics*
Service
Rating
I
II
M
M
I
M/Inst.
M
M
M
Total
Contacts
2
4
25
20
12
41
16
101
42
Comments
Formerly Pyle
Formerly Pyle
Formerly Pyle
Formerly Pyle
Formerly Pyle
Improved sealing
Formerly Pyle
Formerly Pyle
Formerly Pyle
22D
Contact Size
20
2
22
16
3
32
5
92
26
4
3
4
9
9
11
9
3
13
16
12
LJT SERIES I
SELECT SHELL SIZE - SPECIAL INSERT ARRANGEMENT
(Not Mil-Spec Qualified)
Shell Size-
Crimp
Insert Arrg.
25-64
X
Service
Rating
Total
Contacts
64
Comments
Formerly Pyle
22D
40
Contact Size
20
8
16
10
12
6
SELECT NON-STANDARD SHELL SIZE
- Special Insert Arrangement
Shell Size-
Insert Arrg.
25L-3
25L-7
33-3
33-5
33-6
37-5
Crimp
Hermetics*
Service
Rating
II
II
II
II
II
II
Total
Con-
tacts
3
7
3
5
6
4
22D
20
Contact Size
8
4
0
X
X
X
X
X
X
1
7
2
2
1
5
4
2
4
(Insert arrangements requiring non-standard shells)
Completely tooled.
Majority of tooling is completed (contact
Amphenol Aerospace for availability).
u
Not tooled for 02-R.
P
Pin inserts only (contact Amphenol Aerospace
for socket availability).
H
Ground plane proprietary option available.
Arrangement 9-5, 25-62 is exclusively ground
plane type.
n
Not Mil-Qualified.
*
Hermetic inserts - solder termination standard.
(Contact Amphenol Aerospace for optional PCB
or eyelet termination).
**
Two size 16 contacts dedicated to fiber optics.
See the Fiber Optic section for more information.
***
For use in MIL-STD-1760 applications
(pgs. 75 and 76).
For RG 180/U and RG 195/U cables only.
†
††
Size 8 Coax and Twinax are interchangeable.
Note: 25L-3 and 25L-7 use longer shells.
(PWR) Suffix at end of part number to replace coax,
twinax, and fiber contacts
with power contacts.
X
+
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
5
MIL-DTL-38999, Series I LJT, II JT, III TV, HD
Insert Arrangements
38999
III
II
I
SJT
Access
Aquacon
Front face of pin inserts illustrated
Shell Size &
B A
Insert Arrg. for:
Series II JT
8-2
Series I LJT
Series III TV
Service Rating
M
Number of Contacts
2
20
Contact Size
C A
B
5
4 6
3
1
2
6
5
1
7
4 3
2
7
6
8 1
2
9
3
5 4
A
B
5
4 6
1
2
3
4
3
1
2
C A
D
B A
C
A
B
B
A
B
8-3
9-3
8-6
9-6
9-7
9-22
8-35
9-35
8-44
9-44
8-97
8-98
9-98
9-5
M
3
20
Grounded
1
8 Twinax
M
6
22M
M
7
22M
9-9 HD
N
9
23
I
2
20
9-35
M
6
22D
M
4
22
9-94
M
2
20
M
2
22M
2
20
9-98
I
3
20
11-2
11-2
I
2
16
D
A
E
D
C
A
B
E
F
A
B
8
10
9
11
13
7
6
1
12
5
2
3
4
Shell Size &
C B
Insert Arrg. for:
Series II JT
10-4
Series I LJT
11-4
Series III TV
11-4
Service Rating
I
Number of Contacts
4
Contact Size
20
D
C
1
2
13
14 3
19
10 17
15 4
9
16
5
8
6
7
11
12
18
9
8
7
10 1
11
13
6
12
5
2
3
4
D
C
A
B
A
E
D
F
C
B
E
D
F
G
C
A
B
A
C
B
A
D
B
C
10-5
11-5
11-5
I
5
20
11-6
I
6
20
10-13
11-13
M
13
22M
11-19 HD
N
19
23
10-35
11-35
11-35
M
13
22D
11-54
II
4
22D
10-98
11-98
11-98
I
6
20
10-99
11-99
11-99
I
7
20
12-3
13-3
II
3
16
12-4
13-4
13-4
I
4
16
G
F
H
A
B
20
1
F
A
1
1
18
B
29
32
C
B
A
22
E
D
C
21
22
A
G
H
K
A
J
E
B
C
D
C
B
D
6
A
B
E
D
A
B
C
E
C
Shell Size &
D
Insert Arrg. for:
12-8
Series II JT
Series I LJT
13-8
Series III TV
13-8
Service Rating
I
Number of Contacts
8
20
Contact Size
D
F
10
1
9 8
2 3 4 5
7
C
12-22
13-22
M
22
22M
13-26
M
6
2
22D 12
13-32 HD
N
32
23
12-35
13-35
13-35
M
22
22D
13-63
I
2
2
16
12
12-98
13-98
13-98
I
10
20
15-AT
I
10
3
22D
12
14-4
15-4
15-4
I
4
12
14-5
15-5
15-5
II
5
16
K
J
H
G
L A
M B
C
R N
P
D
E
L
K
J
H
G
A
M N B
T U P
S R
F
E
D
M
L
K U
N
A
P
V
S
B
R
C
D
E
12
11
13
23
22
21
20
10
14
Shell Size &
F
Insert Arrg. for:
14-15
Series II JT
15-15
Series I LJT
15-15
Series III TV
Service Rating
I
Number of Contacts
14
1
20
16
Contact Size
C
J
H
T
G
F
2
3
15 4
16
5
24 17
6
25 18
7
19
8
9
1
1
31
21
31
1
1
4
10
21
3
9
16
24
31
39
46
A
G
F
E
D
H
B
C
J
H
G
K
L
M
F
A
B
C
D
17
25
32
40
47
53
52
11
55
E
14-18
15-18
15-18
I
18
20
14-19
15-19
15-19
I
19
20
15-25
M
22
3
22D 16
14-35
15-35
15-35
M
37
22D
14-37
15-37
M
37
22M
15-55 HD
N
55
23
14-68
15-68
I
8
16
14-97
15-97
15-97
I
8
4
20
16
1
11
12
10
18
19
9
17
16
8
15
6
14
5
4
13
3
2
19
18
17
16
15
32
31
30
20
21
1
22
34
2
23
1
3
4
24
5
6
7
8
9
A
E
B
6
A
G
H
F
E
D
C
B
K A
J
H
G
F
E
N
B
L
M
C
D
D
A
B
33
40 41
39
29
38
28
35
17
36
37 25
26
D
F
C
Shell Size &
Insert Arrg. for:
Series II JT
Series I LJT
17-EA
Series III TV
Service Rating
Number of Contacts
10 3 2
4
22D 20 16 12
Contact Size
27
10
14
13
12
30
11
11
C
17-EC
32
22D
9
20
38
22D
17-2
17-2
M
1
8 Twinax
16-6
17-6
17-6
I
6
12
16-8
17-8
17-8
II
8
16
16-13
17-13
I
13
16
17-22
17-22
Coax
2
2
12 Coax 8 Coax
HD:
High Density HD38999 (use size 23 contacts only)
CONTACT LEGEND
8
10
12
16
20
22
22M 22D
23
6
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
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