Retaining Ring, System of Measurement Inch, Location Style External, Thickness 0.025 in, Fits Shaft Diameter 1/4 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.21 in, Fits Groove Width 0.029 in, Fits Groove Depth 0.02 in, Free Inside Diameter 0.204 in, Free Outside Diameter 0.516 in, Clearance Diameter 0.53 in, Material Steel, Finish Zinc Plated, Material Grade/Class Not Graded, Tensile Strength Not Applicable, Ring Type E-Style Retaining Ring, Thickness Tolerance +/-0.002 in