P/N: NAS517-4-13
Category: Screws
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
| Condition | Stock |
|---|---|
| New Surplus | 97 Available |
The NAS517-4-13 is a close-tolerance, 100-degree flat head machine screw with cross-recess drive. Manufactured from alloy steel per NAS517 standard, the -4 size designation indicates 1/4-28 UNF threads. Designed for flush-mounted airframe panel assemblies where precise countersink alignment and shear strength are critical.
Installation requires proper countersink depth to achieve flush surface finish and adequate thread engagement per aircraft maintenance manual specifications. Common in structural repair and panel attachment applications across general aviation and commercial aircraft.
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.
The NAS517-4-13 is a close-tolerance, 100-degree flat head machine screw with cross-recess drive. Manufactured from alloy steel per NAS517 standard, the -4 size designation indicates 1/4-28 UNF threads.
The NAS517-4-13 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
The NAS517-4-13 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.