D38999/49 Defense Supply Center, D38999/49 Datasheet - Page 12

• Manufacturer Part Number: D38999/49
• Description: D38999K / D38999J 500 Cycle Contact
• Manufacturer: Defense Supply Center

the environment resisting assemblies shall be essentially one integral part, configured to provide suitable
sealing and support (except box mount connectors) around the wires and to be nonremovable. The rigid
dielectric shall be one molded piece or no more than two pieces bonded so as to form essentially one
integral piece. The configuration shall be such as to permit the removal and replacement of individual
contacts into their connector inserts with both MIL-I-81969/8 or MIL-I-81969/14 installing/removal tools.
The contact locking device shall be contained in the rigid dielectric insert and shall so retain the contacts as
to meet the contact retention requirements of this specification. Inserts shall be secured to prevent rotation.
All pin contact inserts shall have a resilient interface seal bonded to the front face in accordance with the
applicable standards. Socket entry holes and pin "donut" rings shall conform to figures 13, 14 and 15. Wire
sealing for size 8 cavities may be accomplished by the use of a separate resilient bushing. If separate
resilient bushings are required, they shall be furnished with the connector.
contacts. The insert member for styles S and Z shall be a two-piece construction consisting of a reinforced
rigid dielectric socket support member bonded to the face of the vitreous insert and mechanically retained in
the shell. Socket insert entry holes shall conform to figure 12. All pin contact inserts shall have a resilient
interface seal bonded to the front face of the vitreous insert in accordance with the applicable standards.
Pin "donut" rings shall conform to figures 13, 14 and 15.
designed to meet the environmental requirements of this specification using wire of outer diameter within
the applicable range as shown in table II.
3.4.2 Insert interface.
3.4.2.1 Environment resisting classes. The entire insert and wire sealing or wire supporting member of
3.4.2.2 Hermetic receptacles. Vitreous material shall be used for fusing to metal to insulate and seal
3.4.3 Sealing.
3.4.3.1 Wire sealing (except box mount connectors). Environment resisting assemblies shall be
NOTE: Connectors shall meet the requirements specified when:
1/ Inactive for new design.
2/ MIL-C-17.
3/ The applicable insert arrangements are 19-18, 21-75, 9-1, 17-2, 25-7, 25-8, 25-20,
22D
22M 1/
22 1/
20
16
12
10
8 coax
8 twinax
25-46 and 25-90.
Contact size
a.
b.
Any combination of wire diameters within the extremes of (a), above are used.
is installed.
A full complement of wire of the applicable minimum or maximum insulation diameter
28, 26, 24, 22
28, 26, 24
26, 24, 22
24, 22, 10
20, 18, 16
14, 12
10
M17/95-RG-180 2/
M17/176-00002 3/
Wire size (AWG)
TABLE II. Wire sizes and diameters.
MIL-DTL-38999K
12
Inches
.030
.030
.034
.040
.065
.097
.135
.135
.124
Finished wire outside dimensions
minimum
0.76
0.76
0.86
1.02
1.65
2.46
3.42
3.43
3.15
mm
Inches
.054
.050
.060
.083
.109
.142
.162
.155
.134
maximum
1.37
1.27
1.52
2.11
2.77
3.61
4.12
3.94
3.40
mm