568-172 URETHANE 70 DURO ORINGS

APG stocks the U70172, an AS568-172 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 8.237 in (209.22 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.443 in (214.45 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Polyurethane (AU/EU) delivers outstanding extrusion resistance at elevated pressure and long wear life in dynamic reciprocating service. This material stands up to ozone, petroleum oils, and abrasion and wear. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving prolonged humidity at elevated temperature or hot water and steam call for a different compound.

It sees regular use in off-highway equipment, hydraulic cylinders, and construction machinery.

Stocked as U70172 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.