National 42101S Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 21121 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 54.08 | 2.129 |
| Housing bore | 73.43 | 2.891 |
| Seal O.D. | 73.53 | 2.895 |
| Width | 6.35 | 0.25 |
Size 54.08 × 73.43 × 6.35 mm (2.129 × 2.891 × 0.25 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 42101S for stock & pricing. Factory direct, global shipping.