MIL-DTL-55041F
TABLE IV. Group A inspection.
Inspection
Requirement paragraph
Test method
paragraph
Screening (see table III for screened switches - - - -
Visual and mechanical inspection (for
nonscreened switches) - - - - - - - - - - - - - - - - - - -
3.30 and 3.32
Run-in (for nonscreened switches) - - - - - - - - - - - -
Pull-in voltage 1/ - - - - - - - - - - - - - - - - - - - - - - - -
Dropout voltage 3/ - - - - - - - - - - - - - - - - - - - - - - -
Operating current 1/ - - - - - - - - - - - - - - - - - - - - -
Holding current 3/ - - - - - - - - - - - - - - - - - - - - - - -
Rotor motion delay 1/ 2/ - - - - - - - - - - - - - - - - - - -
Dielectric withstanding voltage 1/ - - - - - - - - - - - -
Transient interference (RFI) 1/ 2/ - - - - - - - - - - - -
Isolation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
VSWR - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Insertion loss - - - - - - - - - - - - - - - - - - - - - - - - - -
Switching time 1/ - - - - - - - - - - - - - - - - - - - - - - - -
1/ For electromechanically operated waveguide switches only.
2/ When specified.
3/ For fail-safe electromechanically operated waveguide switches only.
4.6.2 Periodic inspection. Periodic inspection shall consist of group B inspection. Except where the results of
these inspections show noncompliance with the applicable requirements (see 4.6.2.5), delivery of products which
have passed group A shall not be delayed pending the results of the periodic inspection.
4.6.2.1 Group B inspection. Group B inspection shall consist of the inspections specified in table V, in the order
shown. Group B inspection shall be made on sample units selected from inspection lots which have passed the
group A inspection.
4.6.2.2 Sampling plan. Four sample units (see 4.5.1) shall be selected every 24 months. The first inspection shall
be 24 months after the date of notification of first article approval.
4.6.2.3 Failures. If one or more sample units fail to pass group B inspection, the sample shall be considered to
have failed.
4.6.2.4 Disposition of sample units. Sample units which have been subjected to group B inspection shall not be
delivered on any contract or purchase order.
4.6.2.5 Noncompliance. If a sample fails to pass group B inspection, the manufacturer shall take corrective action
on the materials or processes, or both, as warranted, and on all units of products which can be corrected and which
were manufactured under essentially the same conditions, with essentially the same materials, processes, etc., and
which are considered subject to the same failure. Acceptance of the product shall be discontinued until corrective
action, acceptable to the Government, 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 Government). Group A inspection may be reinstituted; however, final acceptance shall be
withheld until the group B reinspection has shown that the corrective action was successful. In the event of failure
after reinspection, information concerning the failure and the corrective action taken shall be furnished to the
acquiring activity.
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