Split Retaining Ring 0.075 in Thk PK50 System of Measurement Inch Location Style External Thickness 0.075 in Fits Shaft Diameter 1/2 in For Bore Diameter Not Applicable Fits Groove Diameter 0.25 in Fits Groove Width 0.083 in Fits Groove Depth - Free Outside Diameter 0.698 in Clearance Diameter 0.5 in Material Steel Finish Zinc Plated Material Grade/Class Ungraded Tensile Strength 47 000 psi Ring Type X-Ring Clearance Diameter Type Compressed Pack Size Small Pack