BOLT (P/N an4-25) - New Surplus
P/N: an4-25
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 | 33 Available |
Product Description
The AN4-25 is a 1/4-inch hex head aircraft bolt with 28 threads per inch (UNF) in high-strength alloy steel. This AN-series fastener meets AN/NASM4 specifications for structural applications requiring reliable shear load carrying capacity. Commonly used in aircraft brackets, fittings, and control linkages where precision fastening is critical.
Installation requires matching grip length to stack thickness and following torque specifications from the aircraft maintenance manual. Secure with appropriate safety wire or self-locking nuts per FAA AC 43.13 guidance.
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 (P/N an4-25)?
The AN4-25 is a 1/4-inch hex head aircraft bolt with 28 threads per inch (UNF) in high-strength alloy steel. This AN-series fastener meets AN/NASM4 specifications for structural applications requiring reliable shear load carrying capacity.
Does the an4-25 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The BOLT 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 an4-25 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 an4-25.
Can I order the an4-25 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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