NUT,TUBE COUPLING (P/N an818-2) - New Surplus

The AN818-2 is a tube coupling nut (B-nut) designed for 37° flared tube fittings. This fastener works with an AN819 sleeve to clamp the tube flare securely against a male fitting. The -2 designation fits 1/8 inch tubing.

Constructed from aluminum alloy per AN/SAE specifications, the nut provides reliable sealing in aircraft fluid systems. Installation involves sliding the sleeve and nut onto the flared tube, seating on the 37° cone, then torquing per maintenance manual requirements. Commonly used in aircraft pitot-static plumbing and other precision fluid line connections where leak-free performance is critical.

What is the NUT,TUBE COUPLING (P/N an818-2)?

The AN818-2 is a tube coupling nut (B-nut) designed for 37° flared tube fittings. This fastener works with an AN819 sleeve to clamp the tube flare securely against a male fitting.

What conditions is the an818-2 available in?

The an818-2 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 an818-2?

The an818-2 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 an818-2?

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.