NUT (P/N ms21042-02) - New Surplus

The MS21042-02 is an all-metal self-locking hex nut designed for #2-56 screws, conforming to MS21042/NASM21042 standards. This thin-walled, reduced-height nut provides prevailing-torque retention to prevent loosening in vibration-exposed aerospace applications. The self-locking mechanism maintains fastener security without requiring lock washers or secondary locking devices.

Commonly used to secure airframe panels and structural assemblies where small hardware must resist vibration. Installation follows standard prevailing-torque practices with torque values specified in the applicable aircraft maintenance manual.

What is the NUT (P/N ms21042-02)?

The MS21042-02 is an all-metal self-locking hex nut designed for #2-56 screws, conforming to MS21042/NASM21042 standards. This thin-walled, reduced-height nut provides prevailing-torque retention to prevent loosening in vibration-exposed aerospace applications.

Does the ms21042-02 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the ms21042-02 manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the ms21042-02.

Can I order the ms21042-02 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The NUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.