NUT,TUBE COUPLING (P/N an818-8) - New Surplus

The AN818-8 is a tube coupling nut for 37-degree flared tube assemblies. This steel nut secures 1/2-inch tubing to standard aircraft fittings using 3/4-16 UNF-3B threads. Used in aircraft fuel systems, it pairs with an AN819 sleeve and matching flared fitting to create a leak-free connection.

Assembly involves threading the nut onto the fitting body with the sleeve positioned between the nut and flared tube end. Torque specifications follow aircraft maintenance manual requirements and applicable AN/SAE standards for fuel system integrity.

What is the NUT,TUBE COUPLING (P/N an818-8)?

The AN818-8 is a tube coupling nut for 37-degree flared tube assemblies. This steel nut secures 1/2-inch tubing to standard aircraft fittings using 3/4-16 UNF-3B threads.

What conditions is the an818-8 available in?

The an818-8 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 an818-8?

The an818-8 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 an818-8?

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.