MIL-I-36207C, MILITARY SPECIFICATION: INSERT, OPTICAL CHEMICAL-BIOLOGICAL MASK, M-17 (16-MAY-1987) [NO S/S DOCUMENT]

MIL-I-36207C, MILITARY SPECIFICATION: INSERT, OPTICAL CHEMICAL-BIOLOGICAL MASK, M-17 (16-MAY-1987) [NO S/S DOCUMENT]., This specification covers one type and class of optical inserts for use with Mask, Chemical-Biological, M-17, by personnel requiring visual corrections.