MIL-DTL-83729C
4.5.2.1 Sampling plan. A sample of parts shall be randomly selected in accordance with table II-I. If one or more
defects are found, the lot shall be rescreened and the defective parts removed. After screening and removal of
defective parts, a new sample of parts shall be randomly selected in accordance with table II-I. If one or more defects
are found in the second sample, the lot shall be rejected and shall not be supplied to this specification.
4.5.3 Disposition of sample units. Sample units which have passed all of the group A inspection may be delivered
on the contract or purchase order, if the lot is accepted and the sample units are still within specified electrical
tolerances.
TABLE I. First article inspection.
Examination or Test
Requirement
Test method
Number of
Number of
paragraph
paragraph
sample units
failures
to be inspected
permitted
Group I
Visual and mechanical inspection
Seal I
12
1
Electrical characteristics
Dielectric withstanding voltage
Insulation resistance
Group II
Thermal shock and high and low
temperature (when specified)
4
0
Salt spray (corrosion)
Sand and dust (when specified)
Vibration
Acceleration (when specified)
Terminal strength
Seal II
Group III
Moisture resistance
4
0
Barometric pressure (reduced)
(when specified)
Shock
Seal II
Group IV
Life
4
0
Seal II
TABLE II. Group A inspection.
Inspection
Requirement
Method
paragraph
paragraph
Seal
Dielectric withstanding voltage
Electrical characteristics 1/
Electrical characteristics 1/
Insulation resistance
Visual and mechanical inspection
1/ With nominal drive only.
7
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