MIL-N-63400(AR)
4.4
Quality conformance inspection.
4.4.1 Inspection lot formation. Inspection lots shall comply
with the lot formation provision of MIL-N-87144.
4.4.2 Examination. Inspection of product for delivery shall
consist of groups A and B. See 4.4.2.1 thru 4.4.2.6 herein.
4.4.2.1 Group A inspection. Group A inspection shall consist
of the examinations and test specified in 4.4.2.4, and shall be made
on the same set of sample units, in the order shown.
Sampling and inspection for subgroups 1
a. Sampling plan.
and 2 shall be in accordance with MIL-STD-105 for general inspection
level II.
4.4.2.2 Group B inspection. Group B inspection shall consist
of the tests specified in 4.4.2.5, in the order shown. They shall
be performed on sample units that have been subjeted to and have
passed the Group A inspection.
a. Sampling plan. Sampling and inspection shall be in
accordance with MIL-STD-105 for special inspection level S-4 with an
AQL of 2.5 percent. Samples units which have passed all the Group B
inspections may be delivered on the contract provided they are
within tolerance and meet requirements for visual and mechanical
inspection.
4.4.2.3 Group C inspection. Group C inspection shall consist
of the tests specified in 4.4.2.6, in the order shown. They shall
be performed periodically, as specified in 4.4.2.6, on sample units
selected from lots that have passed groups A and B inspection.
a. Sampling plan. The sample size for each subgroup in
4.4.2.6 shall be 10 units. Sample units which have been subjected
to group C inspection shall not be delivered on the contract. If
rejects exceeds those allowed in 4.4.2.6, supplier shall perform
failure analysis and furnish copy to technical agency listed in 6.4.
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