568-031 URETHANE 70 DURO ORINGS

APG stocks the U70031, an AS568-031 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 1.739 in (44.17 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.879 in (47.73 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to petroleum oils, ozone, and impact and shock loading. That behavior comes from the compound itself: Polyurethane (AU/EU) is widely chosen for exceptional abrasion resistance and long wear life in dynamic reciprocating service. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. 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 mining and heavy equipment.

Order part number U70031, sold individually. Nominal inside diameter is listed as 1 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.