SCREW (P/N nas517) - New Surplus

The NAS517 is a close-tolerance, flat countersunk machine screw for aircraft structural applications. Alloy steel construction with 3A threads provides 160 ksi minimum tensile strength and meets NAS specifications for precision fastening. The screw features a 99–101° countersink geometry designed for flush installation in aircraft panels and skin-to-structure joints.

Install in 100° countersunk holes and torque per aircraft maintenance manual. Thread fit and length verification ensures proper assembly performance in high-reliability airframe connections.

What is the SCREW (P/N nas517)?

The NAS517 is a close-tolerance, flat countersunk machine screw for aircraft structural applications. Alloy steel construction with 3A threads provides 160 ksi minimum tensile strength and meets NAS specifications for precision fastening.

Does the nas517 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 nas517 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 nas517.

Can I order the nas517 in custom quantities?

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