MS51921F (NOTICE 1), MILITARY STANDARD: SEAL, PLAIN ENCASED: SINGLE SEALING MEMBER, FACE TYPE (27 OCT 1986) [SUPERSEDED BY A-A-52524/18].
MS51921F (NOTICE 1), MILITARY STANDARD: SEAL, PLAIN ENCASED: SINGLE SEALING MEMBER, FACE TYPE (27 OCT 1986) [SUPERSEDED BY A-A-52524/18].