MS20065A, MILITARY STANDARD: KEY, MACHINE, RECTANGULAR IN CROSS-SECTION, BOTH ENDS SQUARE (13 NOV 1964) [SUPEERSEDED BY NASM20065]
MS20065A, MILITARY STANDARD: KEY, MACHINE, RECTANGULAR IN CROSS-SECTION, BOTH ENDS SQUARE (13 NOV 1964) [SUPEERSEDED BY NASM20065].