National 370057A Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 24931 | Verified in both SKF 457012 & National 430i catalogs |
| 48691 | Verified in both SKF 457012 & National 430i catalogs |
| 48792 | Verified in both SKF 457012 & National 430i catalogs |
| 48794 | Verified in both SKF 457012 & National 430i catalogs |
| 48796 | Verified in both SKF 457012 & National 430i catalogs |
| 48884 | Verified in both SKF 457012 & National 430i catalogs |
| 48886 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 123.82 | 4.875 |
| Housing bore | 163.5 | 6.437 |
| Seal O.D. | 163.68 | 6.444 |
| Width | 23.39 | 0.921 |
Size 123.82 × 163.5 × 23.39 mm (4.875 × 6.437 × 0.921 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 370057A for stock & pricing. Factory direct, global shipping.