BOLT,CLOSE TOLERANCE (P/N an174-25a) - New Surplus

Name: BOLT,CLOSE TOLERANCE
Brand: Aircraft Parts Store
SKU: an174-25a

P/N: an174-25a

Category: Fasteners & Hardware

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In Stock (3 available)

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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 AN174-25A is a close tolerance steel hex-head bolt conforming to AN174 series specifications. It features 1/4-28 UNF threads and an undrilled shank designed for precision-fit airframe joints. This bolt maintains tight dimensional tolerances required for critical structural attachments where standard fasteners would be insufficient.

Installation requires torque per the aircraft maintenance manual and applicable AN/NASM standards for close tolerance bolts. Commonly used in airframe assemblies demanding precision shank fit and alignment.

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,CLOSE TOLERANCE (P/N an174-25a)?

The AN174-25A is a close tolerance steel hex-head bolt conforming to AN174 series specifications. It features 1/4-28 UNF threads and an undrilled shank designed for precision-fit airframe joints.

Does the an174-25a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT,CLOSE TOLERANCE 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 an174-25a 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 an174-25a.

Can I order the an174-25a in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT,CLOSE TOLERANCE is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.