171 x 179 x 13.5 U Cup Seal

Harwal 171 x 179 x 13.5mm U45 polyurethane U-cup seal with 171mm ID, 179mm OD, and 13.5mm width. Made from 90 Shore A polyurethane for reciprocating hydraulic and pneumatic cylinders. Flexible U-shaped lips provide dependable pressure sealing and resist wear, extrusion, oils, and common industrial fluids.