568-311 URETHANE 70 DURO ORINGS

Part number U70311 is an AS568-311 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Polyurethane (AU/EU) delivers long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. The compound resists ozone, petroleum oils, and impact and shock loading. The material carries a published service range of -65°F (-53.9°C) to 200°F (93.3°C). Applications involving acids and bases or hot water and steam call for a different compound.

Typical settings include press and forming equipment, construction machinery, and high-pressure fluid power.

Reference part number U70311 when ordering; the item is sold individually. Nominal inside diameter is listed as 9/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.