NUT,TUBE COUPLING (P/N an6289d6) - New Surplus

The AN6289D6 is an aluminum alloy locknut for 3/8-inch tube coupling assemblies. This fastener features a 9/16-18 UNJF-3B internal thread designed to resist vibration loosening in aircraft hydraulic hardline systems. Install to specified torque using standard aviation wrenches, ensuring proper thread engagement before service.

Commonly used to secure tube fittings on hydraulic fluid lines and pressure assemblies in general aviation and commercial aircraft.

What is the NUT,TUBE COUPLING (P/N an6289d6)?

The AN6289D6 is an aluminum alloy locknut for 3/8-inch tube coupling assemblies. This fastener features a 9/16-18 UNJF-3B internal thread designed to resist vibration loosening in aircraft hydraulic hardline systems.

Does the an6289d6 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT,TUBE COUPLING 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 an6289d6 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 an6289d6.

Can I order the an6289d6 in custom quantities?

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