MS21042L6 – Nut (Alt. to NAS9926-6L)

Aerospace all-metal self-locking hex nut designed for high-reliability fastening in aircraft structural and mechanical assemblies. It uses an all-metal prevailing torque locking feature that maintains secure engagement without the use of non-metallic inserts, making it suitable for elevated temperature and vibration-prone environments. This part is an approved alternative to NAS9926-6L in applicable aerospace installations.

Application:
Aircraft airframe structures, engine accessory installations, landing gear assemblies, control system linkages, and other aviation fastening points requiring high-strength all-metal locking nuts

Function:
Provides a threaded fastening connection with an integrated all-metal locking feature that resists loosening under vibration, thermal cycling, and dynamic mechanical loads while maintaining clamp load integrity