568-259 URETHANE 90 ORINGS -PREM GRADE

Part number U90259 is an AS568-259 clear Polyurethane (AU/EU) 90 Shore A O-Ring built to an inside diameter of 6.234 in (158.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.512 in (165.4 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

It resists ozone, petroleum oils, and extrusion under high pressure. Polyurethane (AU/EU) is specified for very high tensile strength and load capacity, long wear life in dynamic reciprocating service. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It is not the right choice where acids and bases or hot water and steam are present.

It sees regular use in construction machinery, off-highway equipment, and mining and heavy equipment.

Stocked as U90259 and sold individually. Nominal inside diameter is listed as 6 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.