MIL-PRF-31031B
4.5.1.2.2 Visual inspection (group A inspection). Each connector and accessory shall be visually
examined for completeness, workmanship, and identification requirements. Attention shall be given to
those assemblies that require a gasket to determine the condition of the gasket. Gaskets missing,
twisted, buckled, kinked, or damaged in any way shall be cause for rejection.
4.5.1.2.3 Interface dimension inspection. Inspection of the mating dimensions (nondestructive
measurements only) in accordance with MIL-STD-348 is considered critical.
TABLE IV. Inspection level for group A.
Lot size
Visual and mechanical inspection
1
to
20
All
21
to
280
20
281
to
1,200
47
1,201
to
3,200
53
3,201
to 10,000
68
10,001
to 35,000
77
35,001
to 150,000
96
150,001
to 500,000
119
500,001
and over
143
4.5.1.3 Group B inspection. Group B inspection shall consist of the inspections specified in table V in
the order shown, and shall be made on sample units which have been subjected to and passed the group
A inspection. Connectors having identical piece parts may be combined for lot purposes and shall be in
proportion to the quantity of each PIN numbered adapter produced.
4.5.1.3.1 Group B sampling plan. A sample of parts shall be randomly selected in accordance with
table VI. If one or more defects are found, the lot shall be screened for that particular defect(s) and
detects removed. After screening and removal of defects, a new sample of parts shall be randomly
selected and subjected to all tests in accordance with table V. If one or more defects are found in the
second sample, the lot shall be rejected and shall not be supplied to this specification.
TABLE V. Group B inspection.
Inspection
Requirement paragraph
Test method paragraph
Force to engage/disengage
Bayonet and threaded types
"Push-on" connector types
Coupling proof torque (when specified,
see 3.1)
Mating characteristics
Permeability of nonmagnetic materials
Dielectric withstanding voltage
Insulation resistance
VSWR (cabled)
17
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