MS21070F, MILITARY STANDARD, NUT, SELF-LOCKING, PLATE, TWO LUG, REDUCED RIVET SPACING, LOW HEIGHT, CRES, 125 KSI FTU, 450 DEG F AND 800 DEG F (30 SEP 1987) [S/S BY NASM21070]
MS21070F, MILITARY STANDARD: NUT, SELF-LOCKING, PLATE, TWO LUG, REDUCED RIVET SPACING, LOW HEIGHT, CRES, 125 KSI FTU, 450 DEG F AND 800 DEG F (07 FEB 2000) [SUPERSEDED BY NASM21070]