MIL-DTL-13931J
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not
mandatory).
6.1 Intended use. The gun and howitzer cannon; mortar cannon, mounts, and baseplates; recoilless rifles
and mounts; and related equipment covered by this specification are military unique because they are used
for close combat only and have no commercial application.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of the specification.
b. Issue of DoDISS to be cited in the solicitation, and if required, the specific issue of individual
documents referenced (see 2.2.1).
c. Nodule photographs (see 3.4.5.2.6a).
d. Pits size and density (see 3.4.5.2.6c).
e. Spalling depression width (see 3.4.5.2.7.1).
f.
Chipped area width (3.4.5.2.7.2).
g. AQL's in order to implement the procedures of ASQ Z1.4 (see 4.3.1, 4.3.3 and 4.3.4a).
h. Packaging requirements (see 5.1).
6.3
Definitions.
6.3.1 Blend. (see 3.3.1.5).
6.3.2 Spalling. Peeling or flaking of all or any thickness of the plate that leaves in the depression a
surface which appears smooth and parallel to the corresponding surface of the base metal before
plating.
6.3.3 Chipping. Chipping, which leaves a rough appearing surface, is the removal-of plating, or of
plating and base metal, other than by spalling.
6.3.3.1 Chipped areas. A chipped area shall be either of the following:
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