National 2457 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 21111 | Verified in both SKF 457012 & National 430i catalogs |
| 21236 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 53.97 | 2.125 |
| Housing bore | 73.15 | 2.88 |
| Seal O.D. | 73.28 | 2.885 |
| Width | 13.97 | 0.55 |
Size 53.97 × 73.15 × 13.97 mm (2.125 × 2.88 × 0.55 in), lip material code N — 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 2457 for stock & pricing. Factory direct, global shipping.