WASHER (P/N 404740) - New Surplus

Part 404740 is a flat washer that distributes clamp load beneath bolt heads and nuts in aircraft structural joints. This fastener component protects mating surfaces from damage during assembly and maintains preload integrity throughout the aircraft's service life. Conforming to AN960 or NAS1149 standards, the washer's dimensions and material vary by size specification.

Install per the aircraft maintenance manual after verifying the correct size and standard in the Illustrated Parts Catalog. Commonly used in airframe assembly where load distribution and surface protection are critical to joint reliability.

What is the WASHER (P/N 404740)?

Part 404740 is a flat washer that distributes clamp load beneath bolt heads and nuts in aircraft structural joints. This fastener component protects mating surfaces from damage during assembly and maintains preload integrity throughout the aircraft's service life.

Does the 404740 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 404740 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 404740.

Can I order the 404740 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.