APG stocks the U70039, an AS568-039 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 2.739 in (69.57 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.879 in (73.13 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
Polyurethane (AU/EU) is specified here for exceptional abrasion resistance and outstanding extrusion resistance at elevated pressure. The compound resists abrasion and wear, ozone, and extrusion under high pressure. Continuous operating temperature is published at -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 off-highway equipment, mining and heavy equipment, and hydraulic cylinders.
This item is sold individually under part number U70039. Check the compound against your process media, pressure and temperature before committing to a design.
description 568-039 URETHANE 70 DURO ORINGS
uf_description2 2.739" (69.57MM) ID X .070" (1.78MM)
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 2.739 inch (69.57 mm)
Actual_OD 2.879 inch (73.13 mm)
ProductCode Description O-Rings - Bulk - Premium