Retaining Ring External 0.042 in Thk PK5 System of Measurement Inch Location Style External Thickness 0.042 in Fits Shaft Diameter 63/64 in For Bore Diameter 29/32 in Fits Groove Diameter 0.926 in Fits Groove Width 0.046 in Fits Groove Depth 0.029 in Free Inside Diameter 0.91 in Clearance Diameter 1.39 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