MIL-PRF-55339C
4.4 Conformance inspection.
4.4.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A
and B inspection.
4.4.1.1 Inspection lot. An inspection lot shall consist of all adapters of the same PIN produced
under essentially the same conditions, and offered for inspection at one time.
4.4.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in table III
in the order shown.
4.4.1.2.1 Sampling plan (group A). Table III, tests shall be performed on a production lot basis.
Samples shall be selected in accordance with table IV. If one or more defects are found, the lot shall
be screened for that particular defect and defects removed. A new sample of parts shall be selected
in accordance with table IV and all group A tests again performed. 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 III. Group A inspection.
Inspection
Requirement paragraph
Test method paragraph
Sampling procedure
Visual inspection
Dimensional inspection
See table IV
Hermetic seal
Leakage
Dielectric withstanding voltage
4.4.1.2.2 Visual inspection (group A inspection). Each adapter 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.
TABLE IV. Group A Sampling Plan.
Lot size
Visual and mechanical inspection
1
to
19
All
20
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
4.4.1.3 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. Adapters having identical piece parts may be combined for lot purposes and
shall be in proportion to the quantity of each PIN numbered adapter produced.
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