BOLT,MACHINE (P/N an4-21a) - New Surplus
P/N: an4-21a
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 | 155 Available |
Product Description
The AN4-21A is a 1/4-inch hex-head machine bolt conforming to Army-Navy standards for aerospace fastening. Manufactured from steel with an undrilled shank, this bolt provides secure attachment in control bracket assemblies and structural airframe connections. Install with approved AN-standard nut and washer, torquing per aircraft maintenance manual specifications.
The AN4 series designation ensures compatibility with standard aerospace hardware and maintenance procedures across general and commercial aviation applications.
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 an4-21a)?
The AN4-21A is a 1/4-inch hex-head machine bolt conforming to Army-Navy standards for aerospace fastening. Manufactured from steel with an undrilled shank, this bolt provides secure attachment in control bracket assemblies and structural airframe connections.
What conditions is the an4-21a available in?
The an4-21a 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 an4-21a?
The an4-21a 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 an4-21a?
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.