E Style Retaining Ring,0.05 In. Thk,PK50, System of Measurement Inch, Location Style External, Thickness 0.05 in, Fits Shaft Diameter 3/4 in, For Bore Diameter Not Applicable, Fits Groove Diameter 0.625 in, Fits Groove Width 0.056 in, Fits Groove Depth 0.062 in, Free Inside Diameter 0.616 in, Free Outside Diameter 1 in, Material Steel, Finish Zinc Plated, Material Grade/Class Ungraded, Tensile Strength 150,000 psi, Ring Type E-Style Ring, Material Quality Standards ASME