Basic External Ring System of Measurement Inch Location Style External Thickness 0.015 in Fits Shaft Diameter 15/64 in For Bore Diameter Not Applicable Fits Groove Diameter 0.222 in Fits Groove Width 0.018 in Fits Groove Depth 0.007 in Free Inside Diameter 0.215 in Free Outside Diameter Not Applicable Clearance Diameter 0.341 in Material Steel Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type External Ring Thickness Tolerance +/-0.002 in