568-137 URETHANE 90 ORINGS -PREM GRADE

The U90137 is an AS568-137 clear Polyurethane (AU/EU) 90 Shore A O-Ring with an inside diameter of 2.05 in (52.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.256 in (57.3 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to abrasion and wear, ozone, and extrusion under high pressure. That behavior comes from the compound itself: Polyurethane (AU/EU) delivers exceptional abrasion resistance and toughness that outperforms conventional rubber compounds. The material carries a published service range of -65°F (-53.9°C) to 200°F (93.3°C). It should not be specified for service in acids and bases or hot water and steam.

Maintenance and OEM teams specify it across press and forming equipment, construction machinery, and hydraulic cylinders.

This item is sold individually under part number U90137. Nominal inside diameter is listed as 2 1/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.