BOLT,CLOSE TOLERANCE (P/N an173-17a) - New Surplus

The AN173-17A is a close tolerance hex head bolt designed for precision airframe structural joints. This AN173-series fastener features an undrilled shank and is engineered for reamed-hole interference fits, maintaining tight alignment under shear loads. Commonly used in critical airframe connections where close tolerances are essential for structural integrity.

Installation requires matching the bolt to corresponding reamed holes and compatible hardware per aircraft maintenance manual specifications. Verify part compatibility in your aircraft's Illustrated Parts Catalog before use.

What is the BOLT,CLOSE TOLERANCE (P/N an173-17a)?

The AN173-17A is a close tolerance hex head bolt designed for precision airframe structural joints. This AN173-series fastener features an undrilled shank and is engineered for reamed-hole interference fits, maintaining tight alignment under shear loads.

Does the an173-17a 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 an173-17a 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 an173-17a.

Can I order the an173-17a 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.