Spiral Retaining Ring 0.078 in Thk PK5 System of Measurement Inch Location Style External Thickness 0.078 in Fits Shaft Diameter 2 1/2 in For Bore Diameter Not Applicable Fits Groove Diameter 2.36 in Fits Groove Width 0.086 in Fits Groove Depth 0.07 in Free Inside Diameter 2.343 in Free Outside Diameter 2.667 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength 211 000 psi Ring Type Spiral Retaining Ring Material Quality Standards ANSI