MIL-B-12582C, MILITARY SPECIFICATION: BLOCKS, TACKLE, HAUL BACK, FOR WIRE ROPE (20-JAN-1984) [S/S BY A-A-59390]

MIL-B-12582C, MILITARY SPECIFICATION: BLOCKS, TACKLE, HAUL BACK, FOR WIRE ROPE (20-JAN-1984) [S/S BY A-A-59390]., This specification covers single sheave, wire rope, haul-back blocks.