MIL-DTL-18266C
TABLE I. Qualification and Conformance inspection.
Conformance
inspection
Tests
Requirement
Test
Qualification
paragraph
paragraph
Individual
Sampling
Visual inspection
4.6.1
X
X
Electrical continuity
X
X
Transformer dc insulation
resistance
X
Frequency response
X
X
Distortion
X
X
Impedance
X
X
Overload
X
Humidity
X
Ambient temperature cycling
X
Visual inspection
X
Dielectric strength
X
Insulation resistance
X
Flame retardance
X
Tensile strength and
elongation
X
Flexing
X
Cold bend
X
4.3.2 Sampling inspections. Sampling inspections shall be as specified in table I and shall be made on
cord assemblies, which have been subjected to and passed the individual inspections.
4.3.2.1 Sampling plan. A sample of parts shall be randomly selected in accordance with table II. If one
or more defects are found, the contractor may rework it to correct the defects, or screen out the defective
units, and resubmit for reinspection. After screening and removal of defects, a new sample of parts shall
be randomly selected in accordance with table II. If one or more defects are found in the second sample,
the lot shall be rejected and shall not be supplied to this specification.
TABLE II. Sampling plan.
Lot size
Sample size
2 to 13
1/
14 to 150
13
151 to 280
20
281 to 500
29
501 to 1,200
34
1,201 to 3,200
42
3,200 to 10,000
50
Over 10,000
60
1/ Indicates entire lot must be inspected.
4.3.2.2 Disposition of samples. Samples, which have passed the inspection, may be delivered on the
contract, if the lot is accepted and the samples are still within specified electrical tolerances.
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