The U70218 is an AS568-218 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 1.234 in (31.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.512 in (38.4 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Polyurethane (AU/EU) is known for long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. Expect good resistance to ozone, extrusion under high pressure, and impact and shock loading. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Verify compatibility before use with prolonged humidity at elevated temperature or ketones.
Common environments for this compound include mining and heavy equipment, construction machinery, and hydraulic cylinders.
This item is sold individually under part number U70218. Nominal inside diameter is listed as 1 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 568-218 URETHANE 70 DURO ORINGS
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.234 inch (31.34 mm)
Actual Outside Diameter 1.512 inch (38.4 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium