MS21245C, MILITARY STANDARD: NUT, SELF-LOCKING, HEXAGON, THIN, 450 DEGREE F, 80 KSI FTU (30 NOV 1973) [SUPERSEDED BY NASM21245]
MS21245C, MILITARY STANDARD: NUT, SELF-LOCKING, HEXAGON, THIN, 450 DEGREE F, 80 KSI FTU (30 NOV 1973) [SUPERSEDED BY NASM21245].