Ordnance provision system. Ordnance catalog (ordnance provision system): Group F, Setter, fuze, bracket, M1916 (for 75 mm guns, M1897, M1916, and M1917), setter, fuze, bracket, M1916A1 (for 3″ A. A. guns, M1917 and M1918), setter, fuze, bracket, M1916A2 (for 75 mm howitzer carriages, M2A1, M3, and M3A1), parts and equipment; May 15, 1941.