HSN (HNBR) 80 568-393

This o-ring is supplied in AS568-393 green HNBR (Hydrogenated Nitrile) 80 Shore A built to an inside diameter of 23.94 in (608.08 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 24.36 in (618.74 mm), catalogued under part number HSN80393. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against petroleum oils and fuels, heat and oxidation, and sour gas and amine inhibitors. 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. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Exposure to chlorinated hydrocarbons or esters will shorten service life.

Typical settings include engine timing systems, oilfield and downhole equipment, and automotive air conditioning.

This item is sold individually under part number HSN80393. Nominal inside diameter is listed as 24 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.