568-011 HSN90 DURO ORINGS

Ordered as HSN90011, this is an AS568-011 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 0.301 in (7.65 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.441 in (11.2 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against petroleum oils and fuels, modern refrigerants, and heat and oxidation. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where strong oxidizing acids or ketones are present.

Typical settings include commercial refrigeration, oilfield and downhole equipment, and heavy-duty powertrain.

Reference part number HSN90011 when ordering; the item is sold individually. Unit weight is approximately 0.099 g and nominal inside diameter is listed as 5/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.