National 370120A Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 55172 | Verified in both SKF 457012 & National 430i catalogs |
| 55175 | Verified in both SKF 457012 & National 430i catalogs |
| 55177 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 139.7 | 5.5 |
| Housing bore | 184.15 | 7.25 |
| Seal O.D. | 184.3 | 7.256 |
| Width | 30.15 | 1.187 |
Size 139.7 × 184.15 × 30.15 mm (5.5 × 7.25 × 1.187 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 370120A for stock & pricing. Factory direct, global shipping.