BOLT,CLOSE TOLERANCE (P/N an174-20a) - New Surplus
P/N: an174-20a
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 | 105 Available |
Product Description
The AN174-20A is a close-tolerance hex head bolt manufactured from alloy steel with 1/4-28 UNF-3A threads. This AN174-series fastener features an undrilled shank and precision dimensions per Aeronautical Standard specifications. Used in structural airframe joints and hinge fittings where tight tolerances control movement and alignment.
Installation requires verification of grip length and torque specifications from your aircraft maintenance manual. Suitable for general aviation and commercial aircraft assembly and repair.
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 an174-20a)?
The AN174-20A is a close-tolerance hex head bolt manufactured from alloy steel with 1/4-28 UNF-3A threads. This AN174-series fastener features an undrilled shank and precision dimensions per Aeronautical Standard specifications.
Does the an174-20a 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 an174-20a 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 an174-20a.
Can I order the an174-20a 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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