SCREW (P/N a173-4d) - New

The a173-4d is a steel aircraft screw conforming to aerospace fastening standards for nonstructural applications. This general-purpose fastener secures interior trim, access panels, and equipment covers on airframes. Manufactured in corrosion-resistant steel alloy per AN, MS, or NAS specifications, it provides reliable retention in low-stress assemblies during routine maintenance.

Installation follows aircraft maintenance manual procedures and FAA AC 43.13-1B guidance, with size and thread type verified against the Illustrated Parts Catalog for proper fit and function.

What is the SCREW (P/N a173-4d)?

The a173-4d is a steel aircraft screw conforming to aerospace fastening standards for nonstructural applications. This general-purpose fastener secures interior trim, access panels, and equipment covers on airframes.

Does the a173-4d meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW 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 a173-4d 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 a173-4d.

Can I order the a173-4d in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW is available in: New. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.