Ordered as U70413, this is an AS568-413 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 2.975 in (75.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.525 in (89.54 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, impact and shock loading, and ozone. That behavior comes from the compound itself: Polyurethane (AU/EU) delivers 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). Exposure to ketones or prolonged humidity at elevated temperature will shorten service life.
You will find this material specified across press and forming equipment, mining and heavy equipment, and off-highway equipment.
U70413 ships individually. Nominal inside diameter is listed as 3 inch. 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 568-413 URETHANE 70 DURO ORINGS
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 2.975 inch (75.57 mm)
Actual Outside Diameter 3.525 inch (89.54 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium