Retaining Ring Internal 0.042 in Thk PK50 System of Measurement Inch Location Style Internal Thickness 0.042 in Fits Shaft Diameter Not Applicable For Bore Diameter 25/32 in Fits Groove Diameter 0.825 in Fits Groove Width 0.046 in Fits Groove Depth 0.024 in Free Outside Diameter 0.859 in Clearance Diameter 0.52 in Material Steel Finish Black Phosphate Material Grade/Class Ungraded Tensile Strength 150 000 psi Ring Type Housing Ring Material Quality Standards ASME