This o-ring is supplied in AS568-278 clear Polyurethane (AU/EU) 90 Shore A supplied with an inside diameter of 11.984 in (304.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 12.262 in (311.45 mm), catalogued under part number U90278. It delivers dependable bidirectional sealing in a compact groove envelope.
It resists impact and shock loading, abrasion and wear, and extrusion under high pressure. Polyurethane (AU/EU) is known for very high tensile strength and load capacity, toughness that outperforms conventional rubber compounds. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service.
You will find this material specified across hydraulic cylinders, off-highway equipment, and mining and heavy equipment.
This item is sold individually under part number U90278. 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 568-278 URETHANE 90 ORINGS -PREM GRADE
uf_description2 11.984" (304.39MM) ID X .139" (3.53MM
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 11.984 inch (304.39 mm)
Actual_OD 12.262 inch (311.45 mm)
ProductCode Description O-Rings - Bulk - Premium