National 1943 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 17778 | Verified in both SKF 457012 & National 430i catalogs |
| 17818 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 45 | 1.772 |
| Housing bore | 72.2 | 2.843 |
| Seal O.D. | 72.34 | 2.848 |
| Width | 7.5 | 0.295 |
Size 45 × 72.2 × 7.5 mm (1.772 × 2.843 × 0.295 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 1943 for stock & pricing. Factory direct, global shipping.