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BOLT,CLOSE TOLERANCE (P/N an178-23a) - New Surplus

P/N: an178-23a

Category: Bolts

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In Stock (9 available)
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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 9 Available

Product Description

The AN178-23A is a close-tolerance hex head aircraft bolt conforming to the AN173–AN186 series. The undrilled shank (denoted by the 'A' suffix) pairs with self-locking nuts for precision-reamed joints requiring minimal play. Commonly installed in landing gear attachment points and other critical structural connections where tight tolerances are essential.

Install the bolt in a properly reamed close-tolerance hole and torque with the specified self-locking nut per aircraft maintenance manual procedures. Steel construction provides the strength and durability required for high-stress fastening 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,CLOSE TOLERANCE (P/N an178-23a)?

The AN178-23A is a close-tolerance hex head aircraft bolt conforming to the AN173–AN186 series. The undrilled shank (denoted by the 'A' suffix) pairs with self-locking nuts for precision-reamed joints requiring minimal play.

What conditions is the an178-23a available in?

The an178-23a 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 an178-23a?

The an178-23a 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 an178-23a?

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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