WASHER (P/N an970-3) - New Surplus

The AN970-3 is a steel flat washer conforming to AN970/NASM970 aviation standards for #10 screw and AN3 bolt applications. It distributes clamp load across a wider bearing area, reducing stress concentration on fastener heads and nuts. Commonly installed under bolt heads or nuts on structural attachments, particularly where nonmetallic materials or thin sections require increased load distribution.

Installation follows the applicable aircraft maintenance manual torque specifications to ensure proper preload and prevent fastener loosening during flight operations.

What is the WASHER (P/N an970-3)?

The AN970-3 is a steel flat washer conforming to AN970/NASM970 aviation standards for #10 screw and AN3 bolt applications. It distributes clamp load across a wider bearing area, reducing stress concentration on fastener heads and nuts.

Does the an970-3 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 an970-3 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 an970-3.

Can I order the an970-3 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.