WASHER (P/N nas143-5c) - New Surplus

The NAS143-5C is a recessed washer designed to seat countersunk screws in aircraft structural fastening applications. Manufactured from alloy steel, this washer features a 90-degree recess that accommodates compatible countersunk screw heads while distributing clamp load across the joint. Installation requires verification against the aircraft Illustrated Parts Catalog and adherence to NAS143 dimensional standards.

Used in airframe assemblies where countersunk machine screws require a proper bearing surface to maintain structural integrity and load distribution.

What is the WASHER (P/N nas143-5c)?

The NAS143-5C is a recessed washer designed to seat countersunk screws in aircraft structural fastening applications. Manufactured from alloy steel, this washer features a 90-degree recess that accommodates compatible countersunk screw heads while distributing clamp load across the joint.

Does the nas143-5c 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 nas143-5c 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 nas143-5c.

Can I order the nas143-5c 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.