BOLT,MACHINE (P/N an4-3a) - New Surplus
P/N: an4-3a
Category: Bolts
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 | 286 Available |
Product Description
The AN4-3A is a 1/4-inch steel hex-head machine bolt conforming to Army-Navy fastener standards. It features 1/4-28 UNF-3A threads with an undrilled shank, making it suitable for structural airframe joints where through-bolts aren't required. This fastener pairs with washers and nuts to create secure connections in aircraft primary and secondary structure.
Installation requires torquing per aircraft maintenance manual specifications; when manufacturer data are unavailable, follow FAA AC 43.13-1B guidance for acceptable practices.
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 BOLT,MACHINE (P/N an4-3a)?
The AN4-3A is a 1/4-inch steel hex-head machine bolt conforming to Army-Navy fastener standards. It features 1/4-28 UNF-3A threads with an undrilled shank, making it suitable for structural airframe joints where through-bolts aren't required.
What conditions is the an4-3a available in?
The an4-3a is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the an4-3a?
The an4-3a 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.
Do you offer expedited shipping for the an4-3a?
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.