NUT (P/N 290-6d) - New Surplus

The 290-6D is a tube coupling nut for 37-degree flared aircraft fluid lines, cross-referencing AN818-6D specifications. This nut clamps a flared tube and sleeve against a mating fitting to create a metal-to-metal seal in hydraulic, fuel, and pneumatic systems. Installed with an AN819 sleeve, the coupling nut torques per maintenance manual procedures to secure Aeroquip 303/306 hose and tube assemblies.

Steel construction withstands high-pressure fluid system environments. Essential for leak-free connections in aircraft fuel, hydraulic, and environmental control lines.

What is the NUT (P/N 290-6d)?

The 290-6D is a tube coupling nut for 37-degree flared aircraft fluid lines, cross-referencing AN818-6D specifications. This nut clamps a flared tube and sleeve against a mating fitting to create a metal-to-metal seal in hydraulic, fuel, and pneumatic systems.

What conditions is the 290-6d available in?

The 290-6d 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 290-6d?

The 290-6d 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 290-6d?

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.