ARP 400-8785 Stainless Steel Washer ID OD No Chamfer - 3/8 655

The ARP 400-8785 is a precision-engineered stainless steel washer designed for high-performance fastener applications. This washer features a 3/8-inch inner diameter and .655-inch outer diameter, providing optimal load distribution for 3/8-inch bolt applications.

Key Specifications:

• Inside Diameter: 3/8 inch (.375")
• Outside Diameter: .655 inch
• Material: Stainless steel construction for corrosion resistance
• No chamfer design for flat surface contact
• Precision machined to ARP's exacting tolerances

ARP washers are manufactured to aerospace standards and are essential components when installing ARP fasteners. The stainless steel construction provides excellent corrosion resistance while maintaining the strength needed for high-stress applications. The no-chamfer design ensures uniform surface contact and load distribution across the washer face, making it ideal for engine building, racing applications, and other demanding automotive and powersports installations.