MIL-DTL-25516F
TABLE X. Group B inspection.
Inspection
Requirement
Test
Mated
Not
Contacts
paragraph
method
group
mated
group C
paragraph
A
group B
X
X
X
4.7.1
3.1, 3.4, 3.5,
Visual and mechanical inspection 1/
3.7, 3.8
X
4.7.22
3.6.21
Maintenance aging
X
4.7.2
3.6.1
Insulation resistance
X
X
4.7.3
3.6.2
Dielectric withstanding voltage
X
X
4.7.4
3.6.3
Contact resistance
X
4.7.11
3.6.10
Side load (except classes H and Y)
X
4.7.17
3.6.16
Fuel immersion
X
X
4.7.20
3.6.19
Corrosion resistance
1/ Marking will be considered defective only if it is illegible at the completion of the required tests.
4.6.3.1 Sampling plan. Sample units of the same PIN, representative of production at the time of
selection shall be selected at six month intervals for 1 year. Upon passing this inspection, contractor may
select sample units every 12 months. If the second level of sampling is passed two successive times, the
contractor may select sample units every 24 months. In the event of a failure, sampling shall revert to the
6-month interval.
4.6.3.2 Failures. If one or more units fail to pass group B inspection, the sample shall be considered to
have failed.
4.6.3.3 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. Resubmitted lots shall be inspected using
tightened inspection and shall not thereafter be tendered for acceptance unless the former rejection or
requirement of correction is disclosed. Such lots shall be separate from new lots, and shall be clearly
identified as reinspected lots.
4.6.3.4 Disposition of sample units. Sample units which have been subjected to group B inspection
shall not be delivered on the contract or order.
4.6.3.5 Noncompliance. If a sample fails to pass group B inspection, the manufacturer shall notify the
qualifying activity and the cognizant inspection activity of such failure and take corrective action on the
materials or processes, or both, as warranted, and on all units of product which can be corrected and
which were manufactured under essentially the same conditions, with essentially the same materials,
processes, etc, and which are considered subjected to the same failure. 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 B inspection shall be repeated on additional sample units
(all inspection, or the inspection which the original sample failed, at the option of the qualifying activity).
Group A inspection may be reinstituted; however, final acceptance and shipment shall be withheld until the
group B inspection has shown that the corrective action was successful. In the event of failure after
reinspection, information concerning the failure shall be furnished to the cognizant inspection activity and
the qualifying activity.
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