Ordnance provision system. [Ordnance catalog (ordnance provision system): [Group A], Gun, machine, cal. .30, Browning, M1917 and M1917A1, and mounts, major items, maintenance parts, and equipment required for maintenance of gun, machine, cal. .30, Browning, M1917 and M1917A1, and mounts, addendum, Changes 6; July 14, 1942.

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