National 5778 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 15788 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 39.42 | 1.552 |
| Housing bore | 80.26 | 3.16 |
| Seal O.D. | 80.39 | 3.165 |
| Width | 16.38 | 0.645 |
Size 39.42 × 80.26 × 16.38 mm (1.552 × 3.16 × 0.645 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 5778 for stock & pricing. Factory direct, global shipping.