WASHER (P/N 57110-021-2) - New Surplus

The 57110-021-2 is a flat washer that distributes clamping load under bolt heads and nuts in aircraft structural assemblies. This steel washer protects mating surfaces from damage during fastener installation and maintains even preload across joint interfaces. Installed beneath fastener heads in equipment mounting, access panels, and component attachment points throughout the airframe.

Follow the aircraft maintenance manual for proper installation and verify specifications in the Illustrated Parts Catalog for your specific application.

What is the WASHER (P/N 57110-021-2)?

The 57110-021-2 is a flat washer that distributes clamping load under bolt heads and nuts in aircraft structural assemblies. This steel washer protects mating surfaces from damage during fastener installation and maintains even preload across joint interfaces.

Does the 57110-021-2 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The WASHER 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 57110-021-2 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 57110-021-2.

Can I order the 57110-021-2 in custom quantities?

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