MS20068A (NOTICE 2), MILITARY STANDARD: KEY, MACHINE, SQUARE IN CROSS-SECTION, BOTH ENDS ROUND (30 NOV 1998) [SUPERSEDED BY NASM20068]
MS20068A (NOTICE 2), MILITARY STANDARD: KEY, MACHINE, SQUARE IN CROSS-SECTION, BOTH ENDS ROUND (30 NOV 1998) [SUPERSEDED BY NASM20068].