Oatey 7202 Dearborn Brass 1-1/4 in. Regular Slip Washer, Rubber 1-1/4 in. I.D. x 1-7/16 in. O.D., 5/32 in. thick Rubber slip washer Dimensions are 1-1/4" I.D. x 1-7/16" O.D Thickness of 5/32"