Retaining Ring Internal 2.5 mm Thk System of Measurement Metric Location Style Internal Thickness 2.5 mm Fits Shaft Diameter Not Applicable For Bore Diameter 70 mm Fits Groove Diameter 73 mm Fits Groove Width 2.65 mm Fits Groove Depth 1.5 mm Free Outside Diameter 74.5 mm Material Stainless Steel Finish Plain Material Grade/Class 18-8 Tensile Strength 150 000 psi Ring Type Housing Ring Material Quality Standards DIN 1.4122 Manufacturer Location Made in USA