BOLT,MACHINE (P/N an4-40a) - New Surplus
P/N: an4-40a
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 | 3 Available |
Product Description
The AN4-40A is a machine bolt conforming to Air Force-Navy AN standards for aircraft structural fastening. This undrilled shank bolt is designed for use with self-locking nuts, eliminating the need for cotter pins in many airframe applications. Commonly used to attach brackets, fittings, and components in aircraft assemblies where secure, vibration-resistant fastening is required.
Installation requires torquing per the aircraft maintenance manual and applicable hardware specifications to ensure proper clamp load and structural integrity.
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 BOLT,MACHINE (P/N an4-40a)?
The AN4-40A is a machine bolt conforming to Air Force-Navy AN standards for aircraft structural fastening. This undrilled shank bolt is designed for use with self-locking nuts, eliminating the need for cotter pins in many airframe applications.
Does the an4-40a meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The BOLT,MACHINE 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 an4-40a 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 an4-40a.
Can I order the an4-40a in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT,MACHINE is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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