MS51918E (NOTICE 1), MILITARY STANDARD: SEAL, PLAIN ENCASED: SINGLE FELT SEALING MEMBER, EXTERNAL TYPE (10 APR 1989) [SUPERSEDED BY A-A-52524/15].
MS51918E (NOTICE 1), MILITARY STANDARD: SEAL, PLAIN ENCASED: SINGLE FELT SEALING MEMBER, EXTERNAL TYPE (10 APR 1997) [SUPERSEDED BY A-A-52524/15].