NUT STIFF 1/4UNF (P/N a127-e66) - New Surplus
P/N: a127-e66
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 Surplus | 1 Available |
Product Description
The a127-e66 is a 1/4-28 UNF all-metal prevailing-torque locknut designed for aerospace fastening applications. This stiffnut uses internal friction to resist loosening from vibration without requiring separate locking devices. The metal construction provides reliable thread-locking in airframe bracket assemblies and structural connections.
Install per FAA AC 43.13-1B guidance, ensuring proper torque application and thread engagement. Do not use on rotating components.
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 STIFF 1/4UNF (P/N a127-e66)?
The a127-e66 is a 1/4-28 UNF all-metal prevailing-torque locknut designed for aerospace fastening applications. This stiffnut uses internal friction to resist loosening from vibration without requiring separate locking devices.
Does the a127-e66 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The NUT STIFF 1/4UNF 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 a127-e66 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 a127-e66.
Can I order the a127-e66 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The NUT STIFF 1/4UNF is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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