1. NASM25027: Nut, self-locking, 250°F, 450°F and 800°F. National Aerospace Standard (1999)
2. NASM8846: Inserts, screw-thread, helical coil. National Aerospace Standard (1998)
3. MIL-I-45914A: Insert, screw thread—locked in, key locked. Department of Defense Military Specification (1991)
4. MIL-I-45932/1C: Insert, screw thread—thin wall, locked in. Department of Defense Military Specification (1994)
5. NAS3350: Nuts, self-locking, 450°F and 800°F, high quality. National Aerospace Standard (2006)