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The ARP washer kit supplies precision washers intended to distribute fastener clamp load and protect contact surfaces. These washers feature a .471" inner diameter and a 1.30" outer diameter with a no‑chamfer flat seating face and a black finish. They are intended for placement under bolt heads or nuts where consistent seating and load spread are needed.
ARP .471 ID 1.30 OD no chamfer black washers
