The U70350 is an AS568-350 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 4.6 in (116.84 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.02 in (127.51 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
This material stands up to abrasion and wear, extrusion under high pressure, and ozone. Polyurethane (AU/EU) delivers long wear life in dynamic reciprocating service and toughness that outperforms conventional rubber compounds. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Applications involving prolonged humidity at elevated temperature or hot water and steam call for a different compound.
Maintenance and OEM teams specify it across hydraulic cylinders, high-pressure fluid power, and construction machinery.
U70350 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 568-350 URETHANE 70 DURO ORINGS
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 4.6 inch (116.84 mm)
Actual Outside Diameter 5.02 inch (127.51 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium