NUT (P/N ms21921k4) - New Surplus
P/N: ms21921k4
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 | 6 Available |
Product Description
The MS21921K4 is a flareless tube coupling nut for aircraft hydraulic and fuel system lines. Manufactured from corrosion-resistant steel, this nut secures a ferrule and fitting body to create a leak-tight joint on 1/4-inch tubing. It complies with MS21921/AS21921 aerospace standards for reliable fluid system connections.
Installation requires proper alignment of the ferrule with the male fitting, followed by torque application per MS/AS21921 specifications and the aircraft maintenance manual. Correct assembly ensures dependable sealing under pressure and vibration in flight operations.
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 (P/N ms21921k4)?
The MS21921K4 is a flareless tube coupling nut for aircraft hydraulic and fuel system lines. Manufactured from corrosion-resistant steel, this nut secures a ferrule and fitting body to create a leak-tight joint on 1/4-inch tubing.
What conditions is the ms21921k4 available in?
The ms21921k4 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 ms21921k4?
The ms21921k4 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 ms21921k4?
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.