MIL-DTL-0060944B (AR)
3. REQUIREMENTS
3.1 First article. When specified in the solicitation or contract order (see 6.2), a sample shall
be subjected to first article inspection in accordance with 4.3.
3.2 Materials. Materials, parts and assemblies shall comply with requirements specified on the
applicable drawings and referenced specifications.
3.3 Air pressure. The cartridge shall withstand an air pressure of three (3) pounds-per-square-
inch (p.s.i.) for five (5) seconds minimum (min.) without a drop in pressure.
3.4 Functioning. The cartridge assembly shall function, not cause any weapon stoppages due
to the operation of loading, uncoupling, firing and ejecting, and comply with the following:
3.4.1 Velocity. When fired from the MK19, MOD III, Grenade Machine Gun, the mean
velocity of the sample cartridges shall be 790 ± 10 feet-per-second (fps) and a standard deviation not
exceeding 12 fps.
3.4.2 Security of crimp of base plug and action time. When fired from the M129 Grenade
Launcher, the action time of the cartridge shall not exceed 4 milliseconds and there shall be no base
plug movement more than .005 above flush with the rear of cartridge case after firing.
3.5 Ammunition lot numbering. Ammunition lot numbers shall be assigned in accordance
with MIL-STD-1168.
3.6 Workmanship. All parts and assemblies shall be fabricated, loaded and assembled in a
thorough, workmanlike manner. They shall be free of burrs, sharp edges, cracks, dirt, grease, rust, and
other foreign matter. The cleaning method used shall not be injurious to any part, nor shall the parts
be contaminated by the cleaning agents. Exterior surface coatings shall be continuous except for a few
light scratches not exposing base material. All required markings shall be neat and sharply defined.
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