Ordered as U70212, this is an AS568-212 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 0.859 in (21.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.137 in (28.88 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Polyurethane (AU/EU) is widely chosen for exceptional abrasion resistance and toughness that outperforms conventional rubber compounds. The compound resists petroleum oils, abrasion and wear, and ozone. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). It is not the right choice where acids and bases or ketones are present.
Typical settings include press and forming equipment, mining and heavy equipment, and high-pressure fluid power.
Stocked as U70212 and sold individually. Nominal inside diameter is listed as 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 568-212 URETHANE 70 DURO ORINGS
uf_description2 .859" (21.82MM) ID X .139" (3.53MM) C
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.859 inch (21.82 mm)
Actual_OD 1.137 inch (28.88 mm)
ProductCode Description O-Rings - Bulk - Premium