MS51911C, MILITARY STANDARD: SEAL, PLAIN ENCASED, DUAL SEAL, INTERNAL SEAL SPRING LOADED (17 OCT 1986)) [SUPERSEDED BY A-A-52524/7].
MS51911C, MILITARY STANDARD: SEAL, PLAIN ENCASED, DUAL SEAL, INTERNAL SEAL SPRING LOADED (17 OCT 1986)) [SUPERSEDED BY A-A-52524/7].