This is a replacement washer that can be used in many locations on lawn and garden machines. The washer is used as a means to help ensure that the screw or bolt does not loosen. It also helps to distribute the load from the nut, bolt, or screw over a larger area to help reduce the risk of damage to the machine. The washers could need to be replaced for many reasons. They might become bent or misshapen and need to be replaced. They could become corroded, or they might become lost while doing other repairs or maintenance on the machine. Replacing the washer tends to be an easy repair to make. This is a genuine OEM replacement part that is sold individually. Buyers might want to have several of these washers on hand. The washer can be used with many models of Lawn Mower, tiller, snowblower, chainsaw, edger, generator, log splitter, wood chipper, leaf blower, and other small engines. Compatible brands include Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Husky, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, and MasterCut. Owners should double-check to ensure they are getting the right sized washer for their needs.