NUT TUBE COUPLING (P/N as21921-5) - New Surplus
P/N: as21921-5
Category: Nuts
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 120 Available |
Product Description
The AS21921-5 is a flareless tube coupling nut designed for 5/16-inch aircraft tubing. This nut clamps a compression sleeve onto an externally threaded fitting body, creating a leak-tight seal in hydraulic and pneumatic systems. The coupling assembly works without flaring the tube end, simplifying installation and repair.
Assembly requires matching the nut with the appropriate AS21921 sleeve and fitting body, then tightening to secure the tube. Verify tube diameter and thread specifications against the aircraft maintenance manual and Illustrated Parts Catalog before installation.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the NUT TUBE COUPLING (P/N as21921-5)?
The AS21921-5 is a flareless tube coupling nut designed for 5/16-inch aircraft tubing. This nut clamps a compression sleeve onto an externally threaded fitting body, creating a leak-tight seal in hydraulic and pneumatic systems.
What conditions is the as21921-5 available in?
The as21921-5 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 as21921-5?
The as21921-5 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 as21921-5?
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.