BOLT, HEX, MACHINE (P/N an4-31) - New Surplus
P/N: an4-31
Category: Bolts
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Available Inventory
| Condition | Price | Stock |
|---|---|---|
| New Surplus | $1.24 | 91 Available |
Product Description
The AN4-31 is a 1/4-inch hex head machine bolt with 1/4-28 UNF-3A threads, manufactured from alloy steel per AN-series specifications. This fastener secures structural and mechanical assemblies in aircraft applications, including landing gear torque link assemblies. Length is measured from under the bolt head per standard AN conventions.
Installation requires matching the correct grip length to application requirements and applying torque per FAA AC 43.13-1B guidance. Verify part eligibility in the aircraft Illustrated Parts Catalog before use.
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, HEX, MACHINE (P/N an4-31)?
The AN4-31 is a 1/4-inch hex head machine bolt with 1/4-28 UNF-3A threads, manufactured from alloy steel per AN-series specifications. This fastener secures structural and mechanical assemblies in aircraft applications, including landing gear torque link assemblies.
What conditions is the an4-31 available in?
The an4-31 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 an4-31?
The an4-31 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 an4-31?
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.
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