The .281-.625 MS27183 Military Flat Washer Cadmium is a thin, flat, circular metal washer with an outer diameter of .625 inches and an inner diameter of .281 inches. It is made of cadmium-plated steel and is designed to be used with bolts and screws to distribute the load and prevent damage to the surface of the material being fastened. The washer has a thickness of .032 inches and is designed to meet the specifications of Military Standard MS27183.