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The ARP washer pack includes ten flat washers with a 5/16" inner diameter and .550" outer diameter sold as a pack of 10. These washers match 5/16" fastener requirements and are supplied in a counted set for repairs, rebuilds, or assembly work. Dimensions are provided to ensure correct sizing for spacer, load distribution, or sealing needs when used with compatible hardware.
ARP 5/16in ID x .550in OD Washers (Pack of 10)
