386025A is a National oil bath wheel seal for trailer wheel RW applications. It is sized for a 4.625 shaft diameter and a 5.998 bore diameter, with a 0.580 seal width. This is a genuine National part from Pro Gear and Transmission, and we are glad to help you match it to your wheel end.FeaturesNational wheel seal, part number 386025AListed for trailer wheel RWOil bath sealShaft diameter 4.625Bore diameter 5.998Seal width 0.580Tech SpecsShaft diameter: 4.625Bore diameter: 5.998Width: 0.580Type: Oil bath