4-27-18
MIL-DTL-38999 Connectors
FOR MILITARY, AEROSPACE AND HARSH ENVIRONMENTS
MIL-DTL-38999 Series III, II, I, SJT, and Aquacon
38999
About Amphenol
®
Aerospace
Your Source for Interconnect Products
CONTACT US:
Amphenol Aerospace
40-60 Delaware Avenue
Sidney, NY 13838-1395
Customer Service:
Mon - Fri 8AM - 5PM
Phone: (800) 678-0141
Fax: (607) 563-5157
Online: www.amphenol-aerospace.com
Amphenol Aerospace, Amphenol Commercial Air,
and Amphenol Industrial Operations Main Facility in Sidney, NY USA
ABOUT AMPHENOL AEROSPACE:
Amphenol Aerospace, a Division of Amphenol Corporation, is one
of the largest manufacturers of interconnect products in the world for the Military,
Commercial Aerospace and Industrial markets. Amphenol designs, manufactures and
markets circular and rectangular, electronic, fiber optic, EMI/EMP filter, and a variety of
special applications connectors and interconnect systems.
Our state-of-the-art facility is nestled at the foothills of the Catskill Mountains in Sidney,
NY. The Amphenol complex houses many technologies including CNC machining,
die-casting, molding, impact and extruding, plating, screw machining and process
controls. Our fully equipped material evaluation lab and engineering organization utilize
the latest in computer aided design software and analysis tools, allowing us to design,
test, and qualify advanced interconnect systems. Amphenol’s interconnect products are
supplied to thousands of OEMs worldwide and are supported by our worldwide sales
and engineering force, including the largest global network of electronic distributors.
CARE
Customer-Centric:
Our
#1 priority
is our customers who
deserve quality product on time.
Accountable:
Clear owners, clear
actions, clear results.
QUALITY ASSURANCE:
Reliable:
What we build
matters and quality
is imperative.
Amphenol Aerospace has been awarded
both AS9100 - Revision C and ISO9001:2008
Quality Assurance Certifications.
Enthusiastic:
Challenges create rewarding
opportunities. Enthusiasm is
contagious and we will spread it.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
1
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
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
S
Available with Socket contacts only
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
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