National 6663S Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 47660 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 120.65 | 4.75 |
| Housing bore | 168.1 | 6.618 |
| Seal O.D. | 168.27 | 6.625 |
| Width | 28.98 | 1.141 |
Size 120.65 × 168.1 × 28.98 mm (4.75 × 6.618 × 1.141 in), lip material code S — from the National 430i catalog. Always confirm shaft diameter, bore diameter and width against your application before ordering.
Verify dimensions before ordering. Interchange numbers mean the same shaft/bore application, but lip material, spring design or width can differ between brands. Metric sizes can be checked on our oil seal size chart.
Need this seal? Email sales@sealstocks.com with part number National 6663S for stock & pricing. Factory direct, global shipping.