MIL-B-51170F (NOTICE-2), MILITARY SPECIFICATION: BAG, WATERPROOF, CHEMICAL--BIOLOGICAL MASK, M1 (15-AUG-1983) [S/S BY MIL-DTL-51170G]

MIL-B-51170F (NOTICE-2), MILITARY SPECIFICATION: BAG, WATERPROOF, CHEMICAL--BIOLOGICAL MASK, M1 (15-AUG-1983) [S/S BY MIL-DTL-51170G]., MIL-B-51170F remains inactive for new design, however, the document is valid for use.