National 447625 Metal Wiper Hydraulic Seal, 5 x 6 x 0.5 inch

Overview

A metal wiper hydraulic seal made by National in the USA, stamped NATIONAL 447625 USA and 5 X 6 X 0.5 on the case. It fits a 5 inch shaft in a 6 inch bore and is 0.5 inch wide.

The seal has a pressed metal outer case with a bonded rubber sealing element. The case is driven into the housing bore and holds the seal square, while the lip runs on the shaft and keeps dirt, water and grit out of the bearing or the cylinder behind it.

Where it is used

Seals of this size are fitted to hydraulic cylinders, wheel hubs and axles, and to the shafts of heavy equipment. The wiper faces outward, so it takes the dust and the washdown water, which is why it is the part that is renewed at every seal change.

Ordering

Quote National 447625, or the size 5 x 6 x 0.5 inch, with the quantity. If your seal carries a different number, send us the number stamped on the case, or the shaft, bore and width measured off the machine, and we will confirm the match.