The ARP stainless washer with a 3/8" ID and .655" OD is a flat hardware washer sized to fit 3/8-inch fasteners. Supplied for general fastening tasks, this stainless-steel washer is intended to replace worn washers in assemblies and help ensure proper load distribution and spacing when reassembling engine and accessory components.
ARP 3/8 ID .655 OD SS washer