Retaining Ring External 0.05 in Thk System of Measurement Inch Location Style External Thickness 0.05 in Fits Shaft Diameter 1 3/8 in For Bore Diameter Not Applicable Fits Groove Diameter 1.291 in Fits Groove Width 0.056 in Fits Groove Depth 0.042 in Free Inside Diameter 1.272 in Clearance Diameter 1.8 in Material Stainless Steel Finish Plain Material Grade/Class 18-8 Tensile Strength 150 000 psi Ring Type External Retaining Ring Clearance Diameter Type Expanded