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
uf_description2 2.225" (56.52MM) ID X .210" (5.33MM)
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 2.225 inch (56.52 mm)
Actual_OD 2.645 inch (67.18 mm)
ProductCode Description O-Rings - Bulk - Premium