WASHER: (P/N 494-025) - New Surplus

The 494-025 is a flat washer designed for Piper aircraft fastening applications. This washer distributes clamp load under bolt heads and nuts, protecting mating surfaces in structural joints. Manufactured to Piper OEM specifications rather than generic AN/MS/NAS standards, it's used in PA-28 and PA-32 airframe assemblies.

Install the washer directly under the fastener head or nut before torquing per aircraft maintenance manual requirements. Verify part number compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the WASHER: (P/N 494-025)?

The 494-025 is a flat washer designed for Piper aircraft fastening applications. This washer distributes clamp load under bolt heads and nuts, protecting mating surfaces in structural joints.

Does the 494-025 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 494-025 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 494-025.

Can I order the 494-025 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.