BOLT,CLOSE TOLERANCE (P/N an173-20a) - New Surplus
P/N: an173-20a
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 | 54 Available |
Product Description
The AN173-20A is a close tolerance hex head bolt with 10-32 UNF threads and an undrilled shank. Manufactured from steel per AN-standard specifications, this fastener provides precision fit for airframe structural joints where tight grip diameter tolerances reduce hole wear and improve joint integrity. Installed with a nut and torqued per aircraft maintenance manual requirements.
The close tolerance design ensures consistent performance in critical airframe applications across general aviation and commercial aircraft.
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 an173-20a)?
The AN173-20A is a close tolerance hex head bolt with 10-32 UNF threads and an undrilled shank. Manufactured from steel per AN-standard specifications, this fastener provides precision fit for airframe structural joints where tight grip diameter tolerances reduce hole wear and improve joint integrity.
Does the an173-20a 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 an173-20a 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 an173-20a.
Can I order the an173-20a 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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