MIL-DTL-4946E
4.5 Conformance inspection.
4.5.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups
A, B and C.
4.5.1.1 Inspection lot. An inspection lot, as far as practicable, shall consist of all the antennas produced under
essentially the same conditions and offered for delivery at one time.
4.5.1.2 Group A inspection. Group A inspection shall consist of the examinations and tests specified in
Table II and each antenna offered on the contract or order shall be subjected to these tests.
TABLE II. Group A Inspection.
Requirement
Method
Examination or test
paragraph
paragraph
Visual and mechanical
3.5.8, and 3.5.10
Electrical
3.2.3
VSWR
4.5.1.2.1 Disposition of items. Items which have passed the group A inspection shall be subjected to the Group B
inspection. Items which do not pass the group A inspection shall not be acceptable on the contract or order.
4.5.1.3 Group B inspection. Group B inspection shall consist of the tests specified in table III.
TABLE III. Group B inspection.
Examination
Requirement
Method
or Test
paragraph
paragraph
Performance
4.5.1.3.1 Sampling plan. Statistical sampling and inspection shall be performed on an inspection lot basis with a
random sample of units selected in accordance with table IV. The acceptance levels shall be based upon the zero
defective sampling plan. No failures shall be permitted.
TABLE IV. Group B Sampling Plan.
Lot size
Sample size
1-13
100 percent
14-150
13
151-280
20
281-500
29
501-1200
34
1201-3200
42
3201-10,000
50
4.5.1.4 Group C inspection. Group C inspection shall consist of the power test (see 4.6.3.6), vibration
(see 4.6.4.7) and rain (see 4.6.4.9) and shall be conducted on one antenna out of each lot of 200 or fraction thereof
produced on the contract or order, except that the first samples selected shall be from the first units produced.
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