SCREW (P/N nas517-4-1) - New Surplus
P/N: nas517-4-1
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 200 Available |
Product Description
The NAS517-4-1 is a 100-degree flush head machine screw with cross-recess drive and close-tolerance specifications. Manufactured from alloy steel with 1/4-28 UNF threads and 0.531-inch length, this screw is designed for shear joints in aerospace assemblies. The countersunk profile seats flush with airframe skin and panel surfaces, eliminating protrusions that would disrupt aerodynamic flow.
Commonly installed in fuselage skin attachments, wing panels, and access covers where flush fastening is critical. Installation requires adherence to NAS517 specifications and aircraft maintenance manual torque values to ensure proper countersink depth and clamp load.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the SCREW (P/N nas517-4-1)?
The NAS517-4-1 is a 100-degree flush head machine screw with cross-recess drive and close-tolerance specifications. Manufactured from alloy steel with 1/4-28 UNF threads and 0.
Does the nas517-4-1 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 nas517-4-1 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 nas517-4-1.
Can I order the nas517-4-1 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.