Ordered as U70401, this is an AS568-401 clear Polyurethane (AU/EU) 70 Shore A O-Ring measuring an inside diameter of 1.475 in (37.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.025 in (51.44 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
This material stands up to extrusion under high pressure, ozone, and impact and shock loading. Polyurethane (AU/EU) is known for long wear life in dynamic reciprocating service and toughness that outperforms conventional rubber compounds. The material carries a published service range of -65°F (-53.9°C) to 200°F (93.3°C).
Common environments for this compound include mining and heavy equipment, high-pressure fluid power, and construction machinery.
Stocked as U70401 and sold individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 568-401 URETHANE 70 DURO ORINGS
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 1.475 inch (37.47 mm)
Actual Outside Diameter 2.025 inch (51.44 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium