MIL-DTL-6193D
4.5.1 Group B inspection. Group B inspection shall consist of the inspections specified in table VII in
the order shown. Group B inspection shall be made on sample units selected from inspection lots that
have passed group A inspections.
TABLE VII. Group B inspection.
Requirement
Test method
Inspection
paragraph
paragraph
Ozone resistance 1/
1/ At the discretion of the qualifying activity the manufacturer may
verify conformance to 3.4.5.1 as applicable with a certificate of
compliance stating testing has been completed in accordance
with ASTM D117 or 4.7.9 as applicable.
4.5.1.1 Sampling plan. Group B inspection shall be performed every 36 months on universal joint
samples produced during that period. Ozone resistance samples may be randomly selected from sheets
of finished manufactured samples that will be used during manufacture.
4.5.2 Failures. If one or more sample units fail to pass group B inspection, the samples shall be
considered to have failed (see 4.5.4.1).
4.5.3 Disposition of sample units. Sample units, which have been subjected to group B inspection,
shall not be delivered on a contract or purchase order.
4.5.4 Nonconformance.
4.5.4.1 Failures. If a sample fails to pass any group A inspections, see table V, or group B
inspections, see table VII, the manufacturer shall immediately notify the qualifying activity and cognizant
inspection activity of such failure. The manufacturer shall take corrective action on the materials or
processes or both as warranted, on all units of product which can be corrected and which were
manufactured under essentially the same conditions, with essentially the same materials and processes,
and which are considered subject to the same failure.
4.5.4.2 Acceptance and shipment. Acceptance and shipment of the product shall be discontinued
until corrective action acceptable to the qualifying activity has been taken. After the corrective action
has been taken group A testing shall be repeated on additional samples. At the discretion of the
qualifying activity this may included all inspections, or the inspection which the original sample failed.
Individual and sampling and periodic inspections, if applicable, may be reinstituted. However final
acceptance of the universal joints shall be withheld until the group A inspection has shown that the
corrective action was successful.
4.6 Additional QPL test and reporting requirements.
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