BOLT,CLOSE TOLERANCE (P/N an173-3a) - New Surplus

The AN173-3A is a close tolerance hex head bolt manufactured from alloy steel with UNF threads. This fastener meets AN close tolerance specifications for precision diameter and thread fit in structural applications. Commonly used in airframe hinge attachments and other joints requiring tight tolerances to prevent loosening under vibration.

Installation requires properly reamed holes with correct grip length and torque per aircraft maintenance manual specifications. Designed for load-bearing structural connections in general and commercial aviation.

What is the BOLT,CLOSE TOLERANCE (P/N an173-3a)?

The AN173-3A is a close tolerance hex head bolt manufactured from alloy steel with UNF threads. This fastener meets AN close tolerance specifications for precision diameter and thread fit in structural applications.

What conditions is the an173-3a available in?

The an173-3a 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 an173-3a?

The an173-3a 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 an173-3a?

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.