MIL-C-17850A, MILITARY SPECIFICATION: COMPASS, MAGNETIC, POCKET, TYPE MC-1 (29-MAR-1983) [S/S BY MIL-PRF-17850B]

MIL-C-17850A, MILITARY SPECIFICATION: COMPASS, MAGNETIC, POCKET, TYPE MC-1 (29-MAR-1983) [S/S BY MIL-PRF-17850B]., This specification covers a compass, magnetic, pocket for emergency use.