HSN (HNBR) 80 568-008

Part number HSN80008 is an AS568-008 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring supplied with an inside diameter of 0.176 in (4.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.316 in (8.03 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is known for long service life in refrigerant and oilfield duty, the oil resistance of nitrile with substantially better heat capability. This material stands up to ozone and weathering, sour gas and amine inhibitors, and heat and oxidation. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Applications involving chlorinated hydrocarbons or ketones call for a different compound.

You will find this material specified across engine timing systems, commercial refrigeration, and heavy-duty powertrain.

Order part number HSN80008, sold individually. Nominal inside diameter is listed as 3/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.