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

The AN173-23 is a close tolerance hex head bolt manufactured from alloy steel with UNF Class 3A threads. Designed for precision-fit structural fastening in aircraft, this bolt installs in reamed holes with minimal clearance, eliminating the need for standard clearance holes. Commonly used in control-surface hinge brackets and other structural applications requiring exact positioning.

Installation requires matching the dash-length specification to your aircraft's Illustrated Parts Catalog and applying torque per the aircraft maintenance manual or structural repair manual.

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

The AN173-23 is a close tolerance hex head bolt manufactured from alloy steel with UNF Class 3A threads. Designed for precision-fit structural fastening in aircraft, this bolt installs in reamed holes with minimal clearance, eliminating the need for standard clearance holes.

What conditions is the an173-23 available in?

The an173-23 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the an173-23?

The an173-23 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the an173-23?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.