NUT,TUBE COUPLING (P/N an818-6) - New Surplus

The AN818-6 is a tube coupling nut conforming to Army-Navy standards for aircraft fluid systems. This -6 dash size nut secures 3/8-inch outside diameter flared tubing to mating fittings when paired with an AN819 sleeve. Assembly involves sliding the nut and sleeve over the tube, creating a 37-degree flare, then torquing to specification per the aircraft maintenance manual.

Commonly used in aircraft hydraulic line connections where leak-free, vibration-resistant joints are critical. The nut provides reliable pressure sealing in high-vibration engine and system environments.

What is the NUT,TUBE COUPLING (P/N an818-6)?

The AN818-6 is a tube coupling nut conforming to Army-Navy standards for aircraft fluid systems. This -6 dash size nut secures 3/8-inch outside diameter flared tubing to mating fittings when paired with an AN819 sleeve.

What conditions is the an818-6 available in?

The an818-6 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the an818-6?

The an818-6 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the an818-6?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.