APG stocks the U70234, an AS568-234 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 2.984 in (75.79 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.262 in (82.85 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Polyurethane (AU/EU) is specified here for toughness that outperforms conventional rubber compounds and long wear life in dynamic reciprocating service. The material holds up against extrusion under high pressure, impact and shock loading, and petroleum oils. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving acids and bases or ketones call for a different compound.
You will find this material specified across construction machinery, mining and heavy equipment, and hydraulic cylinders.
Stocked as U70234 and sold individually. Nominal inside diameter is listed as 3 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 568-234 URETHANE 70 DURO ORINGS
uf_description2 2.984" (75.79MM) ID X .139" (3.53MM)
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 2.984 inch (75.79 mm)
Actual_OD 3.262 inch (82.85 mm)
ProductCode Description O-Rings - Bulk - Premium