Retaining Ring External 0.042 in Thk PK50 System of Measurement Inch Location Style External Thickness 0.042 in Fits Shaft Diameter 1 1/16 in For Bore Diameter Not Applicable Fits Groove Diameter 0.998 in Fits Groove Width 0.056 in Fits Groove Depth 0.032 in Free Inside Diameter 0.982 in Clearance Diameter 1.5 in Material Steel Finish Zinc Plated Material Grade/Class Ungraded Tensile Strength 150 000 psi Ring Type External Retaining Ring Clearance Diameter Type Expanded