ARP 400-8463 Stainless Steel Washer 3/8" ID Chamfered

The ARP 400-8463 is a precision-engineered stainless steel washer designed for high-performance automotive and racing applications. This washer features a 3/8-inch inside diameter, 0.725-inch outside diameter, and 0.090-inch thickness with a chamfered edge for improved fastener seating and load distribution.

Key Features:

• Constructed from ARP's premium stainless steel for superior corrosion resistance
• Chamfered edge design ensures proper alignment and prevents galling
• Precision machined to exact tolerances for consistent clamping force
• Inside diameter: 3/8 inch
• Outside diameter: 0.725 inch
• Thickness: 0.090 inch
• Ideal for use with ARP fasteners in engine, driveline, and accessory applications

ARP washers are manufactured to aerospace quality standards and provide the reliability demanded by professional engine builders and racers. The stainless steel construction ensures long-lasting performance even in harsh environments with exposure to heat, moisture, and chemicals.