MIL-DTL-641F
4.4.5 Extension of qualification. Jacks of the same type shall be qualified for any permissible color other than
that tested during qualification inspection, provided that the material and design and construction used are
identical.
4.4.6 Group qualification. Group qualification shall be as specified (see 3.1).
TABLE I. Qualification inspection.
Inspection
Requirement paragraph
Test paragraph
Group I (all sample units)
Visual and mechanical examination 1/ - - - - - - -
Group II (all sample units)
Contact resistance - - - - - - - - - - - - - - - - - - - - -
3.6.1
4.6.2
Insulation resistance- - - - - - - - - - - - - - - - - - - -
3.6.2
4.6.3
Dielectric withstanding voltage- - - - - - - - - - - - -
3.6.3
4.6.4
Insertion and withdrawal forces- - - - - - - - - - - -
3.6.4
4.6.5
Strain relief - - - - - - - - - - - - - - - - - - - - - - - - - -
4.6.14
Static load- - - - - - - - - - - - - - - - - - - - - - - - - - -
4.6.17
Longitudinal pull- - - - - - - - - - - - - - - - - - - - - - -
4.6.18
Group III (6 sample units)
Thermal shock - - - - - - - - - - - - - - - - - - - - - - -
4.6.6
Moisture resistance- - - - - - - - - - - - - - - - - - - -
4.6.7
Vibration, high frequency- - - - - - - - - - - - - - - -
4.6.8
Shock (specified pulse)- - - - - - - - - - - - - - - - -
4.6.9
Insulation resistance - - - - - - - - - - - - - - - - - - -
Dielectric withstanding voltage- - - - - - - - - - - - -
Group IV (6 sample units)
Contact resistance - - - - - - - - - - - - - - - - - - - -
Spring life - - - - - - - - - - - - - - - - - - - - - - - - - -
4.6.10
Contact spring pressure - - - - - - - - - - - - - - - -
4.6.16
Contact spring overtravel - - - - - - - - - - - - - - -
4.6.11
Water seal (when specified)- - - - - - - - - - - - - -
Dielectric withstanding voltage- - - - - - - - - - - - -
4.6.12
Salt spray (corrosion) - - - - - - - - - - - - - - - - - - -
Frame strength (when specified) - - - - - - - - - - -
1/ Marking will be considered defective only if it is illegible at the completion of any of the required tests.
4.5 Quality conformance inspection.
4.5.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A and B
inspections.
4.5.1.1 Inspection lot. An inspection lot shall consist of all jacks of the same basic type produced under
essentially the same conditions, and offered for inspection at one time. An inspection lot may include jacks of the
same basic type having shells of different colors, provided that the jacks are otherwise mechanically and
dimensionally identical.
4.5.1.2 Group A inspection. Group A inspection shall consist of visual and mechanical examination (see 4.6.1).
4.5.1.2.1 Sampling plan. The acceptable quality levels (AQL) shall be 1.0 and 2.5 (percent defective) for major
or minor defects, respectively. Major and minor defects shall be as defined in MIL-STD-1916.
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