Ordered as U70210, this is an AS568-210 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 0.734 in (18.64 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.012 in (25.7 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Polyurethane (AU/EU) delivers long wear life in dynamic reciprocating service, very high tensile strength and load capacity. It resists petroleum oils, abrasion and wear, and impact and shock loading. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving ketones or acids and bases call for a different compound.
Maintenance and OEM teams specify it across high-pressure fluid power, press and forming equipment, and mining and heavy equipment.
U70210 ships individually. Nominal inside diameter is listed as 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 568-210 URETHANE 70 DURO ORINGS
uf_description2 .734" (18.64MM) ID X .139" (3.53MM) C
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.734 inch (18.64 mm)
Actual_OD 1.012 inch (25.7 mm)
ProductCode Description O-Rings - Bulk - Premium