Retaining Ring External 1 mm Thk PK50 System of Measurement Metric Location Style External Thickness 1 mm Fits Shaft Diameter 16 mm For Bore Diameter Not Applicable Fits Groove Diameter 15.2 mm Fits Groove Width 1.1 mm Free Inside Diameter 14.7 mm Clearance Diameter 23.8 mm Material Steel Finish Plain Material Grade/Class Ungraded Ring Type External Retaining Ring Clearance Diameter Type Expanded Material Quality Standards DIN 471 Pack Size Small Pack