MIL-DTL-25879G
4.5 Conformance inspection.
4.5.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A.
4.5.1.1 Inspection lot. An inspection lot shall consist of all switches produced under essentially the same
conditions, and offered for inspection at one time. The lot size shall not exceed 200.
4.5.1.2 Group A inspection. Group A inspection shall consist of the examinations and tests specified in table III, in
the order shown.
4.5.1.3 Inspection plans. The specification utilizes an accept on zero defect (c = 0) sampling plan. Sampling shall
be in accordance with table III. Sample categories indicated in table III shall be cross referenced to the appropriate
sample sizes in table IV.
TABLE III. Group A inspection.
Examination or test
Requirement
Test
Sample category
paragraph
paragraph
Subgroup I
Visual and mechanical
3.2
4.7.1
A
Marking
3.6
4.7.1
B
Workmanship
3.8
4.7.1
B
Weight
4.7.1
A
Operating voltage
3.3.1
4.7.2
B
Switching rate
3.3.3
4.7.4
B
Switching time
3.3.4
4.7.5
B
VSWR
3.3.5
4.7.6
B
Internal RF contact resistance
A
Dielectric withstanding voltage
3.3.9
A
Insulation resistance
3.3.8
4.7.9
A
Subgroup II
1/
Operating current
3.3.2
4.7.3
1/
Reliability
3.5
1/ Monthly sample size shall be a minimum of 3 per lot.
TABLE IV. Sampling plans.
Sample
Sample size
category
A
B
C
Lot size
All
All
All
2 to 8
All
All
All
9 to 15
All
16
All
16 to 25
All
20
26
26 to 50
All
20
32
51 to 90
All
20
32
91 to 150
151 to 200
All
20
32
9
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