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National 203025 Oil Seal — SKF/CR Equivalent

SKF / CR Part No.Catalog Source
12124Verified in both SKF 457012 & National 430i catalogs
12165Verified in both SKF 457012 & National 430i catalogs
DimensionMetric (mm)Inch
Shaft diameter30.941.218
Housing bore50.271.979
Seal O.D.50.371.983
Width10.310.406

Size 30.94 × 50.27 × 10.31 mm (1.218 × 1.979 × 0.406 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 203025 for stock & pricing. Factory direct, global shipping.