The U70357 is an AS568-357 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 5.475 in (139.07 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.895 in (149.73 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Polyurethane (AU/EU) delivers toughness that outperforms conventional rubber compounds and long wear life in dynamic reciprocating service. The material holds up against ozone, petroleum oils, and impact and shock loading. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It should not be specified for service in acids and bases or ketones.
Typical settings include construction machinery, press and forming equipment, and high-pressure fluid power.
Stocked as U70357 and sold individually. Nominal inside diameter is listed as 5 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description 568-357 URETHANE 70 DURO ORINGS
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 5.475 inch (139.07 mm)
Actual Outside Diameter 5.895 inch (149.73 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium