E Style Retaining Ring 0.035 in Thk PK10 System of Measurement Inch Location Style External Thickness 0.035 in Fits Shaft Diameter 3/8 in For Bore Diameter Not Applicable Fits Groove Diameter 0.303 in Fits Groove Width 0.039 in Fits Groove Depth 0.035 in Free Inside Diameter 0.3 in Free Outside Diameter 0.66 in Clearance Diameter 0.68 in Material Stainless Steel Finish Plain Material Grade/Class 18-8 Tensile Strength 150 000 psi Ring Type E-Style Retaining Ring