568-168 URETHANE 90 ORINGS -PREM GRADE

Part number U90168 is an AS568-168 clear Polyurethane (AU/EU) 90 Shore A O-Ring with an inside diameter of 7.237 in (183.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 7.443 in (189.05 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against extrusion under high pressure, ozone, and petroleum oils. Polyurethane (AU/EU) is known for very high tensile strength and load capacity, exceptional abrasion resistance. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). It should not be specified for service in prolonged humidity at elevated temperature or ketones.

Maintenance and OEM teams specify it across mining and heavy equipment, off-highway equipment, and hydraulic cylinders.

Reference part number U90168 when ordering; the item is sold individually. Nominal inside diameter is listed as 7 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.