MIL-DTL-43511D
b. Conformance inspection (see 4.3)
4.2 First article inspection. When a first article is required (see 3.1), it shall be examined as
specified in 4.3.3 and 4.3.4 and tested for the characteristics specified in 4.3.5. Any
nonconformance shall be cause for the rejection of the first article. The number of units to be
inspected shall be specified in the contract.
4.3 Conformance inspection. Unless otherwise specified, sampling for inspection shall be
performed in accordance with ASQ-Z1.4. Items shall be examined as specified in 4.3.3 and
4.3.4 and tested for the characteristics specified in 4.3.5.
4.3.1 Inspection lots. For purposes of sampling, a lot shall consist of visors produced from a
single batch of resin during one continuous injection molding operation. Any shutdown of the
molding operation shall be considered as the termination of that operation and lot.
4.3.2 Component and material inspection. Components and materials shall be inspected in
accordance with all the requirements of referenced documents unless otherwise excluded,
amended, modified, or qualified in this specification or applicable purchase document.
4.3.3 End item visual examination. The end item shall be examined for the defects listed in
Table I. The lot size shall be expressed in units of visors. The sample unit shall be one visor.
TABLE I. End item visual defects
Examine
Defect
Classification
Critical Major Minor
Appearance
Pit, bubble, scratch, foreign matter,
void, inclusions or blister:
- Critical area of vision
1
- Non-critical area of vision
101
- Area outside area of vision
201
Cloudiness:
- Critical area of vision
2
- Non-critical area of vision
102
Crack, hole, chip, or break:
- Any area
3
- Evidence of warpage
4
Visible striae or waviness:
- Critical area of vision
5
- Non-critical area of vision
103
Surface abraded, dulled, or not smooth:
- Critical area of vision
6
- Non-critical area of vision
104
6
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