MIL-DTL-46077G
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are classified as
follows:
a. First article inspection (see 4.4).
b. Conformance inspection (see 4.5).
4.2 Ballistic testing facility. Unless otherwise specified in the contract or purchase order (see
6.2), the ballistic test plates shall be forwarded to the Commander, USA ATC, ATTN: CSTE-
DTC-AT-SL-V, Building 358, 400 Colleran Road, APG, MD 21005-5059 for ballistic testing
for first article or lot acceptance.
4.3 Lot. A lot shall consist of all plates of the same declared chemistry, the same nominal
thickness from the same heat, processed together as a unit. All plates in a lot shall receive the
same final heat treatment within standard parameters, but not necessarily at the same time.
4.4 First article inspection. First article inspection, except as otherwise indicated in this
specification, shall utilize the same requirements and test methods as the production acceptance
inspection shown in 4.5.
4.5 Conformance inspection. Conformance inspection or production acceptance inspection
shall include the examination of 4.7 and the tests of 4.8.
4.6 Sampling.
4.6.1 For first article inspection.
4.6.1.1 Chemical analysis. A sample for chemical analysis shall be taken from each heat.
4.6.1.2 Mechanical properties. At least two tension test specimens shall be taken from each
lot. The location and type of specimens shall be as specified in 4.6.2.2.2 and 4.6.2.2.3.
4.6.1.3 Ballistic test samples. Two plates, of the thickness specified on the contract, shall be
submitted to a Government approved facility for ballistic tests. One sample shall be taken from
the first plate fabricated and one from the last plate fabricated in the initial lot produced. When
only one plate is fabricated, the samples shall be taken from opposite ends of the plate. The
required ballistic testing plate dimensions are listed in Table 11. When more than one
thickness is involved, first article approval may be obtained for each of the size ranges listed in
Table 11 by submission of plates for one specified thickness within each range. All ballistic
tests shall be conducted at zero degrees obliquity with the test projectile specified in Table 11
for each ordered thickness.
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