MIL-DTL-55074G
4.5.4 Disposition of first article sample units. Sample units which have been subjected to first article
testing shall not be delivered on any contract or purchase order. The Government reserves the right to
retain the sample units or to require the supplier to furnish the sample units with the first article test report.
4.6 Conformance inspection.
4.6.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A and B
inspection.
4.6.1.1 Inspection lot. An inspection lot shall consist of all the connectors, accessories or contact
assembly, of the same part number, produced under essentially the same conditions, and offered for
inspection at one time.
4.6.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in table III, in the
order shown.
TABLE III. Group A inspection.
Inspection
Requirement paragraph
Test method paragraph
Continuity (contact assembly)
Dielectric strength (contact assembly)
Insulation resistance (contact assembly)
Visual and mechanical inspection
& 3.24
Air leakage (contact assembly and
connector)
4.6.1.2.1 Group A sampling plan. Statistical sampling and inspection shall be performed on an inspection
lot basis with a random sample of components selected in accordance with table IV. The acceptance
levels shall be based upon the zero defective sampling plan. No failures shall be permitted.
TABLE IV. Group A sampling plan.
Lot size
Sample size
1 - 13
100 percent
14 - 150
13
151-280
20
281-500
29
501-1,200
34
1201-3200
42
3201-10000
50
4.6.1.2.2 Group A rejected lots. If an inspection lot is rejected, the contractor may rework it to correct the
defects, or screen out the defective units, and resubmit for reinspection. Such lots shall be separate from
new lots, and shall be clearly identified as reinspected lots.
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