NUT, TUBE COUPLING (P/N ms21921-5) - New Surplus

The MS21921-5 is a steel tube coupling nut conforming to Military Standard MS21921. This nut threads onto the mating body of hydraulic or fuel line assemblies, securing the sleeve and fitting to create a pressure-tight joint. The nut fits over the sleeve and engages with standard aerospace tubing connections.

Installation requires proper torque specification per the aircraft maintenance manual and Illustrated Parts Catalog. Verify compatibility with existing line assemblies before installation.

What is the NUT, TUBE COUPLING (P/N ms21921-5)?

The MS21921-5 is a steel tube coupling nut conforming to Military Standard MS21921. This nut threads onto the mating body of hydraulic or fuel line assemblies, securing the sleeve and fitting to create a pressure-tight joint.

What conditions is the ms21921-5 available in?

The ms21921-5 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 ms21921-5?

The ms21921-5 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 ms21921-5?

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.