MIL-DTL-28804D
3.6.19 Crimp contact deformation. When tested as specified in 4.7.20, crimped contacts shall conform to the requirements of
this specification (see 3.6.19.1 and 3.6.19.2).
3.6.19.1 Deformation of crimped barrel. The out-of-roundness of the crimped barrel shall not exceed the maximum diameter
specified by more than .006 inch (0.15 mm).
3.6.19.2 Axial deformation. The axial bending of the crimped contact shall not exceed .015 inch (0.38 mm), which includes the
maximum total indicator readings permitted the contact during its manufacturer.
3.6.20 Contact pin strength. When tested as specified in 4.7.21, the pin strength for crimp type pin contacts shall be such that a
load moment of .32 inch-pound (1.4 N) will not produce a permanent set in excess of .005 inch (0.13 mm).
3.6.21 Crimp tensile strength. When tested as specified in 4.7.22, the tensile strength of crimp joints for individual contact shall
conform to the requirements of table VIII.
TABLE VIII. Crimp tensile strength.
Wire size (AWG)
Tensile strength
lbs minimum
26
5 (2.27 kg)
22
12 (5.44 kg)
3.6.22 Altitude immersion (classes P and E). When tested as specified in 4.7.23 the mated connector shall meet a minimum
insulation resistance of 1,000 megohms and the requirements of dielectric withstanding voltage as specified in 4.7.7. The use of
epoxy or potting material is permissible when the methods are approved by the qualifying activity.
3.6.23 Resistance to soldering heat. When tested in accordance with 4.7.24, the connectors shall be visually inspected and
shall show no evidence of distortion or physical damage and shall meet the contact retention requirements of 3.6.5 and dimensional
requirements of 3.4.
3.6.24 Solderability (printed wiring tails only). Solderable, nonremovable, printed wiring tails shall withstand the test specified in
4.7.25.
3.7 Marking. Connectors and accessories shall be permanently marked in accordance with MIL-STD-1285 where space
permits, and as indicated below:
a. Complete PIN to be marked shall be as specified (see 3.1).
b. Manufacturer's CAGE code.
c. Manufacturer's date code.
d. Manufacturer's lot code (manufacturer's option).
e. Pin number 1 identifier.
3.7.1 Insert marking. The contact identification and arrangement shall be as specified (see 3.1). Letters or numerals shall be
raised and clearly legible or shall appear in legible contrasting colors. Positioning and arrangement of the numerals shall be such
as to avoid confusion between contacts. Markings shown in MIL-STD-1632 are for the pin insert front and socket rear. Socket face
and pin rear are opposite tab, as specified.
3.8 Workmanship. Connectors and accessories shall meet all design dimensions and intermateability requirements of this
specification. Loose contacts, poor molding fabrication, damage or improperly assembled contacts, peeling, or chipping of plating
or finish, galling of mated parts, nicks and burrs of metal parts and post-molding warpage shall be considered adequate basis for
rejection of items of quality inferior for the purpose intended.
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