568-908 URETHANE 90 ORINGS -PREM GRADE

Part number U90908 is an AS568-908 clear Polyurethane (AU/EU) 90 Shore A O-Ring built to an inside diameter of 0.644 in (16.36 mm), a cross section of 0.087 in (2.21 mm), and an outside diameter of 0.818 in (20.78 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Polyurethane (AU/EU) delivers very high tensile strength and load capacity, outstanding extrusion resistance at elevated pressure. Expect good resistance to abrasion and wear, ozone, and extrusion under high pressure. Continuous operating temperature is published at -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 high-pressure fluid power, off-highway equipment, and hydraulic cylinders.

Order part number U90908, sold individually. Nominal inside diameter is listed as 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.