National 5121 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 19500 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 49.28 | 1.94 |
| Housing bore | 66.6 | 2.622 |
| Seal O.D. | 66.7 | 2.626 |
| Width | 6.48 | 0.255 |
Size 49.28 × 66.6 × 6.48 mm (1.94 × 2.622 × 0.255 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 5121 for stock & pricing. Factory direct, global shipping.