MIL-DTL-38999
Hermetically Sealed Connectors
Series I
Sealtron’s 9700 Series of hermetically
sealed connectors are manufactured in
accordance with MIL-DTL-38999
Series 1 (LJT). These series are
designed so that electrical continuity is
maintained between mating shells prior
to pin and socket engagement, and in
reverse order during the disconnecting
process, thereby providing protection
against EMI.
Series II
Sealtron’s 9800 Series of hermetically
sealed connectors are manufactured in
accordance with MIL-DTL-38999
(USAF) Series II (JT and JTS). These
series are designed to provide low
silhouette for minimum size and weight.
All MIL-DTL-38999 connectors have
high density contact arrangements avail-
able. These connectors have twice the
number of contacts than previously
available in the same shell size.
Series III
Sealtron’s 9900 Series connectors are
supplied with a stainless steel body and
gold plated contacts. These hermetic
receptacles provide excellent service in
areas of severe environments, such as high
temperature, humidity, vibration, shock
and where EMI/RFI shielding is required.
The triple lead thread offers quick
disconnect (360x) with a non- decoupling
feature designed into the plug. The scoop-
proof design prevents accidental bending
of the contacts and provides for the
grounding of the plug and receptacle prior
to the engagement of the pin and socket
contacts.
9705 Reading Rd. Cincinnati, Ohio 45215
Phone(513) 733-8400
Fax(513)733-0131 www.sealtron.com
MIL-DTL- 38999
Engaging Face Pin Insert Arrangement PG 1
ENGAGING FACE OF PIN INSERT SHOWN
9705 Reading Rd. Cincinnati, Ohio 45215
Phone(513) 733-8400
Fax(513)733-0131 www.sealtron.com
MIL-DTL- 38999
Engaging Face Pin Insert Arrangement PG 2
ENGAGING FACE OF PIN INSERT SHOWN
9705 Reading Rd. Cincinnati, Ohio 45215
Phone(513) 733-8400
Fax(513)733-0131 www.sealtron.com
MIL-DTL- 38999
Hermetically Sealed Connectors
HOW-TO-ORDER
SERIES I & II
MS 27471
Y
15
D
18
P
A
EXAMPLE
Basic MS Part
Class-Hermetic
Shell Size
Material / Finish
D-Fused tin on carbon steel
E-Passivated C.R.E.S.
N-Electro deposited nickel on C.R.E.S
Insert Arrangement
Contact Style
P-Solder Cup
X-Eyelet
C-Feedthrough (pc tails)
Alternate Keyway Position
Contacts are gold plated per ASTM B-488 over suitable underplate
9705 Reading Rd. Cincinnati, Ohio 45215
Phone(513) 733-8400
Fax(513)733-0131 www.sealtron.com
MIL-DTL-38999
9702 SERIES
MS27471
9700 SERIES
Shell
A
B
C
Size + .001 + .005 + .001
- .005 - .001 - .005
9
11
13
15
17
19
21
23
25
.572
.700
.850
.975
1.100
1.207
1.332
1.457
1.582
.442
.570
.687
.812
.937
1.042
1.167
1.292
1.417
.672
.781
.906
1.031
1.156
1.250
1.375
1.500
1.625
D
+ .016
.750
.844
.969
1.094
1.218
1.312
1.438
1.563
1.688
L
+ .031
- .000
.659
9703 SERIES
Shell
Size
9
11
13
15
17
19
21
23
25
A
+ .001
- .005
.572
.700
.850
.975
1.100
1.207
1.332
1.457
1.582
MS27469
F
+ .010
- .005
.128
B
C Thread
D
E
+ .005 Class 2A + .016 + .005
- .001
UNEF
.442
.570
.687
.812
.937
1.042
1.167
1.292
1.417
.688-24
.813-20
.938-20
1.063-18
1.188-18
1.313-18
1.438-18
1.563-18
1.688-18
.938
1.031
1.125
1.219
1.312
1.438
1.562
1.688
1.812
.719
.812
.906
.969
1.062
1.156
1.250
1.375
1.500
.147
.147
9705 SERIES
Shell
Size
A
+ .001
- .005
B
+ .005
- .001
C Thread
Class 2A
UNEF
D
+ .016
MS27470
E
+ .011
- .000
F
+ .006
- .005
G
+ .011
H
+ .000
- .010
J
+ .017
K
+ .016
9
11
13
15
17
19
21
23
25
.572
.700
.850
.975
1.100
1.207
1.332
1.457
1.582
.442
.570
.687
.812
.937
1.042
1.167
1.292
1.417
.688-24
.813-20
1.000-20
1.125-18
1.250-18
1.375-18
1.500-18
1.625-18
1.750-18
1.062
1.250
1.375
1.500
1.625
1.812
1.938
2.062
2.188
.642
.766
.892
1.018
1.142
1.268
1.392
1.518
1.642
.777
.965
1.090
1.215
1.340
1.449
1.574
1.699
1.824
.602
.726
.852
.978
1.102
1.228
1.352
1.478
1.602
.655
.755
.942
1.066
1.191
1.316
1.441
1.566
1.691
.875
1.000
1.188
1.312
1.438
1.562
1.688
1.812
2.000
.109
.140
9705 Reading Rd. Cincinnati, Ohio 45215
Phone(513) 733-8400
Fax(513)733-0131 www.sealtron.com
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