MIL-PRF-11264F
TABLE III. Sampling plan for conformance inspection.
Conformance inspection sampling plan
Sample size
Inspection
Examination
lot size
Major Minor Test
2 to 8
5
3
2
9 to 15
5
3
2
16 to 25
5
3
3
26 to 50
5
5
3
51 to 90
7
6
5
91 to 150
11
7
6
151 to 280
13
10
7
281 to 500
16
11
9
501 to 1,200
19
15
11
1,201 to 3,200
23
18
13
3,201 to 10,000
29
22
20
10,001 to 35,000
35
29
30
35,001 to 150,000
40
29
32
150,001 to 500,000
40
29
32
500,001 and over
40
29
50
4.4.2.1 Unclassified defects. All defects having no bearing on function, safety,
interchangeability, or life, but which are considered departures from good workmanship, shall be
noted in writing. Workmanship deficiencies falling within this category and recurring in five
consecutive lots or in 10 lots or more within a 30-day period, will be added to the minor
classification of defects.
4.4.3 Acceptance test. The sample selected in accordance with 4.4.1.2 shall be subjected
to the tests specified in table II. The acceptance number in all cases is zero.
4.4.4 Conformance inspection failure. Any item that fails to conform to any specified
requirement shall be rejected; any failure (one or more) of the selected sample in either the
Major/Minor categories or test for the appropriate inspection lot size shall constitute a failure of
the entire lot. The rejected item(s) may be repaired or corrected and resubmitted for inspection.
If the contractor utilizes sampling inspection as an element of his inspection system, rejected
inspection lots may be resubmitted for acceptance if the contractor performs 100 percent
inspection on the lot for those characteristics which were defective and resulted in rejection of
the lot and removes all defective units or obtains procuring activity approval to resample the lot
due to the insignificance of the defects. Resubmitted lots shall be kept separate from new lots
and shall be clearly identified as resubmitted lots.
4.5 Control tests. Control tests shall be selected at the rate of three per month or three of
each 500 units produced, whichever occurs first. Not more than six containers shall be selected
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