D38999/49 Defense Supply Center, D38999/49 Datasheet - Page 30

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

contacts shall be accomplished using tools conforming to MIL-DTL-22520, class I. The length of stripped
portion of conductor shall be at least long enough to reach the bottom of the crimp barrel, but shall not be
so long that more than .031 inch (0.79 mm) of conductor is exposed at end of barrel when conductor end
touches bottom of barrel. An alternate sample preparation may be used with the approval of the qualifying
activity.
4.3.2 Preparation of samples. Except as otherwise specified for shielded contacts, wiring of crimp-type
a. Samples provided under 4.3.1a shall be wired with wire having a smooth extruded outer jacket of
waterproof construction. One sample of each shell size for series II, and two samples of each shell
size for series I, III, and IV, shall have wires for maximum diameter and the other samples shall have
wires for minimum diameter. See table XII for example of wires that can be used to accomplish the
required minimum and maximum diameter. Two cavities of each sample provided shall contain
unwired contacts and sealing plugs in accordance with MS27488, MIL-C-85049/80 or /81, as
applicable. Connectors with less than four contacts of a given contact size will not have sealing
plugs installed for that contact size. Box mount connectors may be potted at any convenient stage in
the test prior to altitude immersion in group 1 and humidity in group 2.
b. Samples provided under 4.3.1b shall be wired with the wire size specified in table VI and potted at
c. Samples provided under 4.3.1e and 4.3.1k shall be wired with wire of nominal gauge, except size
1/ High-strength wire is recommended for use on vibration samples.
2/ Inactive for new design.
any convenient stage in the sequence prior to vibration. Example of wires that can be used are
MIL-W-22759/9 or MIL-DTL-81381/7.
22 contacts shall be wired with 24 gauge wire. Examples of wires that can be used are
MIL-W-22759/9 or MIL-DTL-81381/7
and 22M 2/
22 2/, 22D,
Contact
8 twinax
8 coax
size
20
16
12
10
M22759/7
M22759/8
M22759/3, /4,
M22759/7
M22759/8
M22759/7
M22759/8
M22759/9 or /20
M22759/10 or /21
/7, or /8
MIL-C-17/95-RG180
MIL-C-17/176-00002
accomplish Maximum
Example of wire to
TABLE XII. Test wire sizes. 1/
diameter
MIL-DTL-38999K
-20
-20
-12
-12
-10
-10
-16
-24
-24
30
M22759/18, /19, /32, /33
M22759/44, /45, /46
M22759/18, /19, /32, /33
M22759/44, /45, /46
M22759/11, /12, /13, /14
M22759/22, /23
M22759/18, /19, /32,
M22759/44, /45
M81381/7 or /8
M81381/11 or /12
M22759/11
MIL-C-17/95-RG-180
MIL-C-17/176-00002
Example of wire to accomplish
Minimum diameter
-10
-12
-26
-22
-16
-26
-22
-24