The U70143 is an AS568-143 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 2.425 in (61.6 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.631 in (66.83 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
The material holds up against ozone, impact and shock loading, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) is valued for long wear life in dynamic reciprocating service and exceptional abrasion resistance. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service.
It sees regular use in off-highway equipment, high-pressure fluid power, and construction machinery.
This item is sold individually under part number U70143. Nominal inside diameter is listed as 2 7/16 inch. Review your operating media and conditions against this specification before installation.
Description 568-143 URETHANE 70 DURO ORINGS
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.425 inch (61.6 mm)
Actual Outside Diameter 2.631 inch (66.83 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium