MIL-DTL-12211G
TABLE III. Group A inspection.
Requirements
Method
Sampling
Inspection
paragraph
paragraph
plan
Visual and mechanical examination 1/
and 3.9 inclusive.
Calibration
Endurance
1/ Marking defects shall be charged only for illegible, incomplete, or incorrect marking.
Incorrect resistance, and resistance marking shall be determined by and shall be charged
to the total resistance test (4.7.2).
4.6.1.2.1 Sampling plan. A sample of parts from each inspection lot shall be randomly selected in
accordance with table IV. If one or more defects are found, the lot shall be screened and defectives
removed. After screening and removal of defectives a new sample of parts shall be randomly selected in
accordance with table IV. If one or more defects are in the second sample, the lot shall be rejected and
shall not be supplied to this specification.
TABLE IV. Group A sampling plan.
Lot size
Sample size
1 to
8
All
9 to
150
13
151 to
280
20
281 to
500
29
501 to
1,200
34
1,201 to
3,200
42
3,201 to 10,000
50
10,001 to 35,000
60
35,001 to 150,000
74
150,001 to 500,000
90
500,001 and over
102
4.6.1.3 Group B inspection. Group B inspection shall consist of the tests specified in table V, in the
order shown.
4.6.1.3.1 Sampling plan. A sample of parts shall be randomly selected from parts that have passed
Group A within 36 months after the date of qualification and within each subsequent 36-month period.
The sample units shall be selected either from stock or current production lots. Switches selected from
stock shall have been produced after the date of notification of qualification or subsequent to the date
code of the previous Group B inspection sample units. Group B inspection shall be performed on sample
units produced using the same manufacturing facilities and processes as units normally offered for
acquisition. When there has been no production for 36 months or more, sample units shall be selected
from the next production lot presented for acceptance and for each subsequent 36-month period.
Contact the qualifying activity if this occurs.
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