National 8974S Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 21771 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 55.37 | 2.18 |
| Housing bore | 76.2 | 3 |
| Seal O.D. | 76.33 | 3.005 |
| Width | 12.57 | 0.495 |
Size 55.37 × 76.2 × 12.57 mm (2.18 × 3 × 0.495 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 8974S for stock & pricing. Factory direct, global shipping.