Spiral Retaining Ring 0.05 in Thk PK10 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 1.277 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength 211 000 psi Ring Type Spiral Retaining Ring Material Quality Standards ANSI Manufacturer Location Made in USA