568-902 HSN90 DURO ORINGS

Ordered as HSN90902, this is an AS568-902 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 0.239 in (6.07 mm), a cross section of 0.064 in (1.63 mm), and an outside diameter of 0.367 in (9.32 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The compound resists modern refrigerants, heat and oxidation, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) offers improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Exposure to esters or strong oxidizing acids will shorten service life.

It sees regular use in commercial refrigeration, engine timing systems, and heavy-duty powertrain.

HSN90902 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.