BOLT,CLOSE TOLERANCE (P/N an178-23a) - New Surplus
P/N: an178-23a
Category: Fasteners & Hardware
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.
Does the an178-23a meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The BOLT,CLOSE TOLERANCE conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the an178-23a manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the an178-23a.
Can I order the an178-23a in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT,CLOSE TOLERANCE is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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