The U70434 is an AS568-434 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 5.6 in (142.24 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.15 in (156.21 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
It resists abrasion and wear, extrusion under high pressure, and impact and shock loading. Polyurethane (AU/EU) is widely chosen for long wear life in dynamic reciprocating service and toughness that outperforms conventional rubber compounds. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Verify compatibility before use with hot water and steam or acids and bases.
Maintenance and OEM teams specify it across off-highway equipment, high-pressure fluid power, and hydraulic cylinders.
Reference part number U70434 when ordering; the item is sold individually. 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 568-434 URETHANE 70 DURO ORINGS
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 5.6 inch (142.24 mm)
Actual Outside Diameter 6.15 inch (156.21 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium