STIFFNUT (P/N a126e66) - New Surplus
P/N: a126e66
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 | 24 Available |
Product Description
The a126e66 is an all-metal prevailing-torque self-locking nut conforming to AN363/MS21045 aerospace standards. This stiffnut resists loosening under vibration through thread deformation, maintaining clamp load without polymer inserts. Steel construction enables operation at elevated temperatures unsuitable for nylon-insert nuts.
Used in airframe and engine attachments requiring reliable fastening in high-vibration environments. Install on undamaged threads and torque per aircraft maintenance manual specifications.
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 STIFFNUT (P/N a126e66)?
The a126e66 is an all-metal prevailing-torque self-locking nut conforming to AN363/MS21045 aerospace standards. This stiffnut resists loosening under vibration through thread deformation, maintaining clamp load without polymer inserts.
Does the a126e66 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The STIFFNUT 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 a126e66 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 a126e66.
Can I order the a126e66 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The STIFFNUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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