SCREW, 100 FLAT HEAD CLOSE TOL (P/N nas517-3-4) - New Surplus
P/N: nas517-3-4
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 | 10 Available |
Product Description
The NAS517-3-4 is a 100° flat-head machine screw with cross-recess drive and close-tolerance specifications. Constructed from alloy steel, this fastener installs flush into countersunk panel joints and structural interfaces where tight hole fit is critical. Used in aircraft fuselage panels, wing structures, and control surface attachments requiring secure, flush fastening.
The screw's 100° countersink angle matches standard aircraft countersink tools. Installation requires following the aircraft maintenance manual for proper torque values and hole preparation to ensure shear strength and prevent fastener pull-through.
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, 100 FLAT HEAD CLOSE TOL (P/N nas517-3-4)?
The NAS517-3-4 is a 100° flat-head machine screw with cross-recess drive and close-tolerance specifications. Constructed from alloy steel, this fastener installs flush into countersunk panel joints and structural interfaces where tight hole fit is critical.
Does the nas517-3-4 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The SCREW, 100 FLAT HEAD CLOSE TOL 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 nas517-3-4 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 nas517-3-4.
Can I order the nas517-3-4 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW, 100 FLAT HEAD CLOSE TOL is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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