Retaining Ring External 1 mm Thk PK50 System of Measurement Metric Location Style External Thickness 1 mm Fits Shaft Diameter 14 mm For Bore Diameter Not Applicable Fits Groove Diameter 13.4 mm Fits Groove Width 1.1 mm Free Inside Diameter 12.9 mm Clearance Diameter 21.4 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