MIL-PRF-71139A
3.7.5 Ammunition lot numbering. Ammunition lot numbers shall be assigned in accordance with
MIL-STD-1168. All markings and stampings shall be neat and legibly defined.
3.7.6 Insensitive munitions. The M792 cartridge shall comply with the DOD insensitive
munition requirements of MIL-STD-2105 excluding spall impact test.
3.7.7 Cartridge color. The color of the cartridge case shall be olive drab green compliant within
the range of FED-STD-595/34079, FED-STD-595/34082, FED-STD-595/34088, and FED-STD-
595/34096. The color of the projectile shall be yellow (FED-STD-595/33538) with a 0.50 + .05 inch
circumferential red stripe (FED-STD-595/31158) at the forward edge of the ogive in accordance with
MIL-STD-709.
3.7.8 Marking. Cartridge and projectile markings shall be visible, clear and remain legible during
normal life cycle handling. The cartridge markings shall be located no further than 1.19 inches maximum
above the base of the cartridge case. Cartridge and lot number marking characters shall be 0.18 + .03 inch
high and the color shall be black. The cartridge lot number and marking CTG, 25MM, HEI-T, M792 shall
be placed .06 + .03 inch apart with the lot number below the nomenclature. The HEI-T M792 and
projectile lot number marking shall be located on the projectile in characters 0.125 + .03 inch high and the
color shall be black. Location on projectile is optional. All marking shall be placed circumferentially and
oriented such that they are upright when the cartridge is base down.
3.7.9 Conformance to baseline. The cartridge shall be built in accordance with the verified
design.
3.7.10 Workmanship. All cartridge parts and assemblies shall be clean, free of burrs, sharp
edges, unblended radii, surface defects, chips, dirt, grease, oil, corrosion products, and foreign matter, etc.
that may impair proper functioning. Exterior surface coatings shall be continuous. Acceptable and
unacceptable visual and physical defect criteria are defined in MIL-STD-651.
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