The U90901 is an AS568-901 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 0.185 in (4.7 mm), a cross section of 0.056 in (1.42 mm), and an outside diameter of 0.297 in (7.54 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Polyurethane (AU/EU) is specified here for outstanding extrusion resistance at elevated pressure and toughness that outperforms conventional rubber compounds. The material holds up against petroleum oils, impact and shock loading, and ozone. Service temperature is rated from -65°F (-53.9°C) through 200°F (93.3°C).
You will find this material specified across mining and heavy equipment, off-highway equipment, and hydraulic cylinders.
Order part number U90901, sold individually. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 568-901 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.056 inch (1.42 mm)
Actual Inside Diameter 0.185 inch (4.7 mm)
Actual Outside Diameter 0.297 inch (7.54 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium