Retaining Ring,External,1 mm Thk,PK50, System of Measurement Metric, Location Style External, Thickness 1 mm, Fits Shaft Diameter 17 mm, For Bore Diameter Not Applicable, Fits Groove Diameter 16.2 mm, Fits Groove Width 1.1 mm, Free Inside Diameter 15.7 mm, Clearance Diameter 25 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