LOCKING KEY NUT (P/N 73563-21) - New
P/N: 73563-21
Category: Fasteners & Hardware
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 | 3 Available |
Product Description
The 73563-21 is a locking key nut designed to secure threaded joints against vibration in aircraft assemblies. This aerospace-grade fastener provides positive anti-rotation retention on single fasteners, such as bracket attachment points. Manufactured in steel construction per aerospace standards, the nut features a key slot mechanism that engages with a corresponding key to prevent loosening under flight vibration and operational stress.
Listed by Bombardier Learjet as OEM airframe hardware. Installation follows FAA AC 43.13-1B hardware practices, including prevailing-torque verification and proper torque application. Verify applicability in your aircraft's Illustrated Parts Catalog before use.
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 LOCKING KEY NUT (P/N 73563-21)?
The 73563-21 is a locking key nut designed to secure threaded joints against vibration in aircraft assemblies. This aerospace-grade fastener provides positive anti-rotation retention on single fasteners, such as bracket attachment points.
Does the 73563-21 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The LOCKING KEY NUT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the 73563-21 manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the 73563-21.
Can I order the 73563-21 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The LOCKING KEY NUT is available in: New. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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