SPACER (P/N 643903) - New Surplus

Name: SPACER
Brand: Aircraft Parts Store
SKU: 643903

P/N: 643903

Category: Fasteners & Hardware

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In Stock (2 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	2 Available

Product Description

Part 643903 is a sleeve-type spacer that maintains precise distance in bolted assemblies. This component prevents crush and preserves alignment in control linkage brackets and structural fittings. Manufactured to NAS43 specifications for consistent dimensions and interchangeability across aircraft applications.

The spacer functions as a standoff, setting proper stack-up for through-bolts during assembly. Installation follows aircraft maintenance manual requirements and applicable engineering drawings. Commonly used in general aviation and commercial aircraft where controlled spacing and structural integrity are critical.

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 SPACER (P/N 643903)?

Part 643903 is a sleeve-type spacer that maintains precise distance in bolted assemblies. This component prevents crush and preserves alignment in control linkage brackets and structural fittings.

Does the 643903 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SPACER 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 643903 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 643903.

Can I order the 643903 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SPACER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.