Ordered as U70155, this is an AS568-155 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 3.987 in (101.27 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.193 in (106.5 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
It resists ozone, extrusion under high pressure, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) is known for outstanding extrusion resistance at elevated pressure and long wear life in dynamic reciprocating service. 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.
Common environments for this compound include off-highway equipment, mining and heavy equipment, and hydraulic cylinders.
Order part number U70155, sold individually. Review your operating media and conditions against this specification before installation.
Description 568-155 URETHANE 70 DURO ORINGS
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 3.987 inch (101.27 mm)
Actual Outside Diameter 4.193 inch (106.5 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium