WASHER (P/N 603-4) - New Surplus
P/N: 603-4
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 | 50 Available |
Product Description
The 603-4 is a plain flat washer for aircraft fastening assemblies. It provides a smooth bearing surface under bolt or nut heads, distributing clamp load across a wider area to prevent surface damage and material deformation. Commonly specified under AN960 or NAS1149 standards for general aviation and commercial aircraft applications.
Install with the washer positioned between the fastener head and the surface being clamped, then apply torque per aircraft maintenance manual specifications. Suitable for equipment mounting points, structural connections, and access panel installations where load distribution is required.
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 WASHER (P/N 603-4)?
The 603-4 is a plain flat washer for aircraft fastening assemblies. It provides a smooth bearing surface under bolt or nut heads, distributing clamp load across a wider area to prevent surface damage and material deformation.
Does the 603-4 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The WASHER 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 603-4 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 603-4.
Can I order the 603-4 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.