NUT (P/N an6289-3) - New Surplus

The AN6289-3 is a steel tube fitting locknut conforming to AN6289/SAE AS5179 specifications. This component threads onto aircraft fluid system fittings to provide thread retention and accommodate packing material in the sealing recess. Installed at tube-to-port connections in fuel, hydraulic, and pneumatic lines, the locknut secures the fitting while maintaining system integrity under pressure and vibration.

Installation requires tightening to torque specifications per aircraft maintenance manual procedures and applicable AN/AS fitting standards.

What is the NUT (P/N an6289-3)?

The AN6289-3 is a steel tube fitting locknut conforming to AN6289/SAE AS5179 specifications. This component threads onto aircraft fluid system fittings to provide thread retention and accommodate packing material in the sealing recess.

Does the an6289-3 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT 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 an6289-3 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 an6289-3.

Can I order the an6289-3 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The NUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.