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National 6781 Oil Seal — SKF/CR Equivalent

SKF / CR Part No.Catalog Source
17836Verified in both SKF 457012 & National 430i catalogs
DimensionMetric (mm)Inch
Shaft diameter45.621.796
Housing bore69.222.725
Seal O.D.69.342.73
Width12.70.5

Size 45.62 × 69.22 × 12.7 mm (1.796 × 2.725 × 0.5 in), lip material code L — 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 6781 for stock & pricing. Factory direct, global shipping.