National 231003 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 39135 | Verified in both SKF 457012 & National 430i catalogs |
| 39136 | Verified in both SKF 457012 & National 430i catalogs |
| 39139 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 100 | 3.937 |
| Housing bore | 125 | 4.921 |
| Seal O.D. | 125.28 | 4.932 |
| Width | 12 | 0.472 |
Size 100 × 125 × 12 mm (3.937 × 4.921 × 0.472 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 231003 for stock & pricing. Factory direct, global shipping.