National 3553 Oil Seal — SKF/CR Equivalent
| SKF / CR Part No. | Catalog Source |
|---|---|
| 21961 | Verified in both SKF 457012 & National 430i catalogs |
| Dimension | Metric (mm) | Inch |
|---|---|---|
| Shaft diameter | 55.91 | 2.201 |
| Housing bore | 69.47 | 2.735 |
| Seal O.D. | 69.62 | 2.741 |
| Width | 5 | 0.197 |
Size 55.91 × 69.47 × 5 mm (2.201 × 2.735 × 0.197 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 3553 for stock & pricing. Factory direct, global shipping.