Timken National Seals oil seal (MPN 4990) designed to help retain lubricant and reduce contamination ingress in rotating shaft applications (verify application fit).
| Inside Diameter | : | 52 mm |
| Lip Material | : | Nitrile |
| Outside Diameter | : | 68.28 mm |
| Series | : | 4000 |
| Type | : | Oil Seal |
| Width | : | 7 mm |