BOLT,CLOSE TOLERANCE (P/N an173-7a) - New Surplus

The AN173-7A is a close-tolerance hex head bolt manufactured from alloy steel with an undrilled shank for precision fastening in critical airframe joints. This fastener maintains tight dimensional control to minimize play and ensure proper alignment in interference-fit applications. Designed for structural attachment points requiring reamed holes, the bolt delivers the exact fit needed for load-bearing connections.

Installation requires properly sized bores and torque application per aircraft maintenance specifications. Commonly used in wing-to-fuselage joints, control surface attachments, and landing gear mounting points where structural integrity depends on precise fastener fit.

What is the BOLT,CLOSE TOLERANCE (P/N an173-7a)?

The AN173-7A is a close-tolerance hex head bolt manufactured from alloy steel with an undrilled shank for precision fastening in critical airframe joints. This fastener maintains tight dimensional control to minimize play and ensure proper alignment in interference-fit applications.

Does the an173-7a 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 an173-7a 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 an173-7a.

Can I order the an173-7a 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.