BOLT,CLOSE TOLERANCE (P/N an173-21a) - New Surplus
P/N: an173-21a
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 | 15 Available |
Product Description
The AN173-21A is a close tolerance hex head bolt manufactured from alloy steel and threaded 10-32 UNF per AN173 specifications. This fastener provides precise shank-to-hole fit for #10 diameter applications in high-shear airframe joints. Designed for reamed hole installation where tight tolerances are critical, the bolt maintains structural integrity under vibration and flight loads.
Installation requires torque per aircraft maintenance manual and FAA AC 43.13-1B guidance during maintenance and repair operations.
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 an173-21a)?
The AN173-21A is a close tolerance hex head bolt manufactured from alloy steel and threaded 10-32 UNF per AN173 specifications. This fastener provides precise shank-to-hole fit for #10 diameter applications in high-shear airframe joints.
Does the an173-21a 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 an173-21a 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 an173-21a.
Can I order the an173-21a 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.