BOLT,CLOSE TOLERANCE (P/N an174-21a) - New Surplus
P/N: an174-21a
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 | 27 Available |
Product Description
The AN174-21A is a close tolerance bolt from the AN174 family, manufactured from alloy steel to NASM6812 specifications. This precision fastener achieves exact shear fit in reamed-hole hinge fittings and other structural joints requiring tight dimensional control. The close tolerance design eliminates excessive clearance, providing reliable load transfer in aircraft primary structure.
Installation requires verification of correct dash length and grip length per the aircraft's Illustrated Parts Catalog and 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 BOLT,CLOSE TOLERANCE (P/N an174-21a)?
The AN174-21A is a close tolerance bolt from the AN174 family, manufactured from alloy steel to NASM6812 specifications. This precision fastener achieves exact shear fit in reamed-hole hinge fittings and other structural joints requiring tight dimensional control.
Does the an174-21a 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 an174-21a 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 an174-21a.
Can I order the an174-21a 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.
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