WASHER (P/N 28s10-2) - New Surplus

The 28s10-2 is a helical split lock washer designed to maintain bolt and nut preload under vibration. This steel washer installs under bolt heads or nuts in airframe bracket assemblies, resisting fastener loosening during flight operations. Conforming to NASM35338 specifications for helical spring lock washers, it provides reliable performance in aviation fastener stacks.

Install per aircraft maintenance manual requirements and verify compatibility in your aircraft's Illustrated Parts Catalog before use.

What is the WASHER (P/N 28s10-2)?

The 28s10-2 is a helical split lock washer designed to maintain bolt and nut preload under vibration. This steel washer installs under bolt heads or nuts in airframe bracket assemblies, resisting fastener loosening during flight operations.

Does the 28s10-2 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 28s10-2 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 28s10-2.

Can I order the 28s10-2 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.