External Retaining Ring, For Nominal Shaft/Bore Diameter 0.5 in, Outside Diameter 0.923 in, For Bearing Type Closed, Open, Ring Type External, Compatible Grainger Part Number 2LEV4, 2LFD6, 4YRL6, Compatible Manufacturer Model Number A81420, OPN81420, Super8, XA81420, Inside Diameter 0.825 in, Thickness 0.042 in, Material Steel