National 416666 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 57521 | Verified in both SKF 457012 & National 430i catalogs |
| 57531 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 146.05 | 5.75 |
| Housing bore | 177.83 | 7.001 |
| Seal O.D. | 178 | 7.008 |
| Width | 14.27 | 0.562 |
Size 146.05 × 177.83 × 14.27 mm (5.75 × 7.001 × 0.562 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 416666 for stock & pricing. Factory direct, global shipping.