U70154 is an AS568-154 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 3.737 in (94.92 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.943 in (100.15 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Polyurethane (AU/EU) is valued for toughness that outperforms conventional rubber compounds and long wear life in dynamic reciprocating service. It resists impact and shock loading, petroleum oils, and extrusion under high pressure. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Exposure to prolonged humidity at elevated temperature or acids and bases will shorten service life.
Common environments for this compound include mining and heavy equipment, construction machinery, and off-highway equipment.
Reference part number U70154 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description 568-154 URETHANE 70 DURO ORINGS
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 3.737 inch (94.92 mm)
Actual Outside Diameter 3.943 inch (100.15 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium