BOLT,CLOSE TOLERANCE (P/N an173-23a) - New Surplus

The AN173-23A is a close tolerance bolt manufactured to Aeronautical Standard specifications for precision structural assemblies. This steel fastener is designed for reamed, close-fit shear joints where controlled tolerance and exact alignment are critical. Commonly used in bearing-supported connections and airframe structural applications, the AN173-23A maintains precise fit requirements for load transfer and structural integrity.

Installation follows standard AN fastener practices including proper torque application, lubrication, and inspection per aircraft maintenance manuals. The close tolerance design eliminates shimming and ensures repeatable assembly in high-precision aircraft structures.

What is the BOLT,CLOSE TOLERANCE (P/N an173-23a)?

The AN173-23A is a close tolerance bolt manufactured to Aeronautical Standard specifications for precision structural assemblies. This steel fastener is designed for reamed, close-fit shear joints where controlled tolerance and exact alignment are critical.

Does the an173-23a 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 an173-23a 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 an173-23a.

Can I order the an173-23a 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.