MIL-S-4040G
TABLE III. Group A inspection.
Inspection |
Requirement paragraph |
Method paragraph |
Subgroup 1 Dielectric withstanding voltage Subgroup 2 DC coil resistance Coil current Compensated actuating voltage Insulation resistance Visual and mechanical examination Deactuating voltage (when specified) Operate and release time (when specified) |
3.5.3 3.5.1.6 3.5.1.5 3.5.1.2 3.5.2 3.1, 3.4, 3.5, 3.8, and 3.9 3.5.1.3 3.5.1.4 |
4.7.4 4.7.2.6 4.7.2.5 4.7.2.2 4.7.3 4.7.1 4.7.2.3 4.7.2.4 |
4.6.2.1 Sampling plan.
4.6.2.1.1 Subgroup 1. All solenoids offered for inspection shall be subjected to the dielectric withstanding voltage test. Lots having more than five percent total rejects shall not be furnished on the contract. Solenoids out of specification limits shall not be shipped with the lot.
4.6.2.1.2 Subgroup 2. A sample of parts shall be randomly selected in accordance with table IV. If one or more defects are found, the lot shall be rescreened and the defective parts removed. A new sample of parts shall then be randomly selected in accordance with table IV. 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 IV. Group A, subgroup 2 inspection sampling plan.
Lot size |
Electrical characteristics (number of sample units) 1/ |
Visual and mechanical inspection |
|
Major |
Minor |
||
2 - 8 9 - 15 16 - 25 26 - 50 51 - 90 |
all all 20 20 20 |
100 percent 13 13 13 13 |
3 3 3 5 6 |
1/ Electrical characteristics shall include coil resistance, coil current, and compensating actuating voltage.
4.7 Methods of inspection.
4.7.1 Visual and mechanical inspection. Solenoids shall be inspected to verify that the materials, design, construction, physical dimensions, marking, and workmanship are in accordance with the specified requirements (see
3.1, 3.4, 3.5, 3.8, and 3.9).
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