BOLT,CLOSE TOLERANCE (P/N an177-40a) - New Surplus
P/N: an177-40a
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 | 3 Available |
Product Description
The AN177-40A is a close-tolerance hex-head aircraft bolt engineered for structural joints requiring precision fit and minimal play. This steel fastener conforms to AN177 series specifications with an interference-fit shank designed to control joint movement and reduce fatigue stress. Installed in reamed shear joints on wing spars, fuselage fittings, and control surface attachments where exact hole alignment is critical.
Installation requires matching the bolt to close-tolerance holes and securing per aircraft maintenance manual torque specifications and FAA AC 43.13-1B guidance.
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 an177-40a)?
The AN177-40A is a close-tolerance hex-head aircraft bolt engineered for structural joints requiring precision fit and minimal play. This steel fastener conforms to AN177 series specifications with an interference-fit shank designed to control joint movement and reduce fatigue stress.
Does the an177-40a 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 an177-40a 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 an177-40a.
Can I order the an177-40a 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.
Related Fasteners & Hardware
- CIRCLIP – P/N frs949h
- BOLT, MACHINE – P/N an5-37a
- PIN LOCK – P/N aa55487-2
- PIN: 1/4X1.8 LG MODEL C – P/N g-1307-0418
- FASTENER – P/N 0450277-210
- INSERT PLATE – P/N 2392-02mz
- WASHER – P/N an960-c4l
- NUT L/H THREAD – P/N nas509-3l
- PIN, TAPER, THREADED – P/N an386-2-11a
- BOLT – P/N dhs1473-2-1-2e
- GROMMET – P/N nas557-10a
- PIN – P/N hl18pb5-3