521-1366: 3mm Thick Flat Washer

Description: Flat washers like part # 521-1366 provide a controlled assembly surface by evenly distributing pressure when the mating fastener is tightened to lower contact stress generated by the fastener to a level the abutment material can support. Cat fastener parts are designed for specific Applications based on size, strength, clamp load, and past performance. This are information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do. Attributes: • Steel flat washer • Inside Diameter: 21mm (0.83 in) • Outside Diameter: 37mm (1.46 in) • Thickness: 3mm (0.12 in) Application: Consult your owner’s manual or contact your local Cat Dealer for more information.