APG stocks the U90018, an AS568-018 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 0.739 in (18.77 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.879 in (22.33 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Polyurethane (AU/EU) offers long wear life in dynamic reciprocating service, very high tensile strength and load capacity. The compound resists petroleum oils, ozone, and extrusion under high pressure. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It should not be specified for service in acids and bases or hot water and steam.
It sees regular use in off-highway equipment, hydraulic cylinders, and press and forming equipment.
This item is sold individually under part number U90018. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description *568-018 URETHANE 90 ORINGS -PR GRADE
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 0.739 inch (18.77 mm)
Actual Outside Diameter 0.879 inch (22.33 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium