MIL-DTL-55353A
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TABLE I. Group A and Group B inspection.
Inspection and test
Requirement
Test method
paragraph
paragraph
Group A inspections
Visual and mechanical
3.1, 3.2, 3.4, and 3.5
4.5.1
inspection
3.3.1
4.5.2
Acoustic quality
Group B inspections
Slide adjustments
3.3.2
4.5.3
Strain relief
3.3.3
4.5.4
4.4.1.3 Group B inspection. Group B inspection shall consist of the tests specified in table I, and shall be made
on sample units which have been subjected to and have passed the group A inspection.
4.4.1.3.1 Sampling plan. A sample of parts shall be randomly selected in accordance with table II. If one or
more defects are found, the lot shall be rescreened and defects removed.
4.4.1.3.2 Rejected lots. If an inspection lot is rejected, the supplier may rework it to correct the defects, or
screen out the defective units, and resubmit for reinspection. If one or more defects are found in the second
sample, the lot shall be rejected and shall not be supplied to this specification.
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TABLE II. Group A and Group B sampling plans.
Sample size
Lot
Size
Group A
Group B
2
to
8
Entire lot
3
9
to
15
13
3
16
to
25
13
3
26
to
50
13
3
51
to
90
13
3
91
to
150
13
13
151
to
280
20
13
281
to
500
29
13
501
to
1,200
34
20
1,201
to
3,200
42
32
3,201
to 10,000
50
32
10,001
to 35,000
60
50
35,001
to 150,000
74
80
150,001
to 500,000
90
80
500,001
and
over
102
125
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