U70331 is an AS568-331 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Polyurethane (AU/EU) is specified here for very high tensile strength and load capacity, exceptional abrasion resistance. Expect good resistance to impact and shock loading, extrusion under high pressure, and ozone. The material carries a published service range of -65°F (-53.9°C) to 200°F (93.3°C). Exposure to acids and bases or hot water and steam will shorten service life.
You will find this material specified across high-pressure fluid power, hydraulic cylinders, and off-highway equipment.
Stocked as U70331 and sold individually. Nominal inside diameter is listed as 2 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description 568-331 URETHANE 70 DURO ORINGS
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 2.225 inch (56.52 mm)
Actual Outside Diameter 2.645 inch (67.18 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium