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The ARP 5/16" ID, 13/16" OD washer is a larger-diameter washer for 5/16-inch fasteners, providing expanded outer diameter for load distribution and consistent clearance in engine assemblies. Suited to maintenance, component replacement, or any situation where a wider bearing surface is needed, these washers help ensure predictable fastener seating and repeatable spacing across bolted joints.
ARP 5/16 ID 13/16 OD washers
