MIL-DTL-55041F
TABLE II. First article inspection.
Inspection
Requirement
Test
paragraph
method
paragraph
Group I (all samples)
Screening (see table III for screened switches) - - -
4.7.2
Visual and mechanical inspection (for
nonscreened switches) - - - - - - - - - - - - - - - - - - -
Run-in (for nonscreened switches) - - - - - - - - - - - -
4.7.3
Pull-in voltage 1/ - - - - - - - - - - - - - - - - - - - - - - - -
4.7.4
Dropout voltage 3/ - - - - - - - - - - - - - - - - - - - - - - -
4.7.5
Operating current 1/ - - - - - - - - - - - - - - - - - - - - -
4.7.6
Holding current 3/ - - - - - - - - - - - - - - - - - - - - - - -
4.7.7
Rotor motion delay 1/ 2/ - - - - - - - - - - - - - - - - - - -
4.7.8
Dielectric withstanding voltage 1/ - - - - - - - - - - - -
4.7.9
Transient interference (RFI) 1/ 2/ - - - - - - - - - - - -
4.7.10
Isolation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4.7.11
VSWR - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4.7.12
Insertion loss - - - - - - - - - - - - - - - - - - - - - - - - - -
4.7.13
Switching time 1/ - - - - - - - - - - - - - - - - - - - - - - - -
4.7.14
Group II (2 samples)
RF energy leakage 2/ - - - - - - - - - - - - - - - - - - - -
4.7.15
RF power handling capability - - - - - - - - - - - - - - -
4.7.16
Cycle life - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Post electrical tests - - - - - - - - - - - - - - - - - - - - - -
Group III (2 samples)
Thermal shock 1/ - - - - - - - - - - - - - - - - - - - - - - -
Altitude and cold 1/ - - - - - - - - - - - - - - - - - - - - -
Moisture resistance 1/ - - - - - - - - - - - - - - - - - - - -
Pressure 2/ - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Vibration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Shock (specified pulse) - - - - - - - - - - - - - - - - - - - -
Explosion 1/ - - - - - - - - - - - - - - - - - - - - - - - - - - -
Salt atmosphere - - - - - - - - - - - - - - - - - - - - - - - - - - -
Sand and dust 1/ - - - - - - - - - - - - - - - - - - - - - - - -
Post electrical tests 4/ - - - - - - - - - - - - - - - - - - - -
1/ For electromechanically operated waveguide switches only.
2/ When specified.
3/ For fail-safe electromechanically operated waveguide switches only.
4/ The applicable post electrical tests shall be performed after the last environmental test is completed.
4.5.3 Failures. One or more failures shall be cause for refusal to grant first article approval. A failure shall be
anything that does not meet the requirements of the specification.
4.5.4 Disposition of first article approval sample units. Sample units which have been subjected to first article
approval testing shall not be delivered on any contract or purchase order. Unless otherwise specified, the contractor
shall furnish the sample units with the first article approval test report. The samples shall be retained by the
Government or, at the option of the acquiring activity and with the agreement of the contractor, returned to the
contractor for storage. Samples stored by the contractor shall not be disposed of without acquiring activity approval.
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