MIL-DTL-46118E(MR)
nearest 0.01 inch. These measurements shall be made in regions of uniform
thickness as close as possible to the intended point of impact of projectiles
within the area required to provide ballistic protection as shown on the
drawing.
4.8
Examination.
4.8.1
Dimensions.
4.8.1.1 Rolled plate. Plates within the lot shall be measured to
determine compliance with the requirements for dimensions and tolerances (see
3.7) in accordance with sampling procedures approved by the procuring
activity.
4.8.1.2 Forged shapes. From each acceptance lot, representative forgings
shall be selected in accordance with table VI and examined to determine
compliance with the requirements of 3.7.
TABLE VI. Sampling for dimensional examination.
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Number of forgings in the lot
Number of sample forgings
Up to 50, incl.
5
51 to 130, incl.
10
131 to 300, incl.
15
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4.8.2 Visual. Each plate or forging shall be examined to determine
compliance with the identification marking (see 3.8) and workmanship (see
3.10) requirements.
4.8.3 Preparation for shipment. Prior to shipment, examination shall be
made to determine compliance with section 5.
4.9
Rejection and retest.
4.9.1 Rejection. Unless otherwise specified in the contract or order
(see 6.2), failure of the first article test plates or forgings to meet the
requirements of 4.3.1 shall be cause for rejection of the process, failure of
the acceptance samples to meet the requirements of 4.8 shall be cause for
rejection of the lot (see 4.9.2).
4.9.2 Retest. Unless specific retest procedure is specified in the
contract or order (see 6.2), samples shall be submitted for each failed sample
in accordance with paragraphs 4.10.1, 4.10.2 or 4.10.3. Failure of either of
the retest samples (plates) shall be cause for rejection of the material.
First article retests shall not be permitted until the supplier has made the
necessary corrections in the processing of the material to the satisfaction of
the procuring activity. Samples submitted for retest shall be marked R1, R2
and R3, if applicable, in addition to the requirements of 3.8.
4.10
Acceptance.
4.10.1 Stress corrosion (first article) testing only. If the
manufacturer so desires, a retest shall be performed using three additional
specimens. No cracking shall occur in 10 days. If the retest also fails, the
manufacturer may elect to resubmit the lot after retreatment of the entire
lot. After retreatment, the lot must conform to the requirements outlined in
4.7.3.
10
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