WASHER (P/N sp55e) - New Surplus

The sp55e is a flat washer conforming to AN960/NAS1149 or MS20002 specifications for aircraft fastening applications. This steel washer distributes clamp load under bolt heads and nuts, providing a smooth bearing surface in bolted joints. It helps maintain grip alignment and can shim castellated nuts during installation.

Used throughout airframe assemblies wherever bolted connections require load distribution. Install per aircraft maintenance manual specifications and FAA AC 43.13-1B guidance.

What is the WASHER (P/N sp55e)?

The sp55e is a flat washer conforming to AN960/NAS1149 or MS20002 specifications for aircraft fastening applications. This steel washer distributes clamp load under bolt heads and nuts, providing a smooth bearing surface in bolted joints.

Does the sp55e 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 sp55e 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 sp55e.

Can I order the sp55e 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.