MS21040
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- MS21040C, MILITARY STANDARD, NUT, SELF-LOCKING, 500 DEG. F, HEXAGONAL, REDUCED HEIGHT (22 JUL 1969) [SUPERSEDED BY MS21042]
- MS21042M, MILITARY SPECIFICATION SHEET, NUT, SELF-LOCKING, 450 DEG. F, REDUCED HEXAGON, REDUCED HEIGHT, RING BASE, NON-CORROSION RESISTANT STEEL (6 JAN 1995) [S/S BY NASM21042]
- MIL-N-25027/1A, MILITARY SPECIFICATION NUT, SELF-LOCKING, HEAVY HEX, (NON-METALLIC INSERT) 250 DEGREES AND 450 DEGREES F, UNJC-3B, 1/4 THROUGH 2-1/2 INCH NOMINAL DIAMETERS, NICKEL-COPPER ALLOY (28 APR 1995) [S/S BY MIL-DTL-32258]
- MIL-DTL-32258, DETAIL SPECIFICATION NUT, SELF-LOCKING (RING TYPE NON-METALLIC INSERT), HEAVY HEX, CONTROLLED ROOT RADIUS, NICKEL-COPPER ALLOY (28 JUN 2007) (SUPERSEDING MIL-N-25027/1A)
