HSN (HNBR) 80 568-239

Part number HSN80239 is an AS568-239 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is specified here for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. It resists petroleum oils and fuels, heat and oxidation, and ozone and weathering. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across oilfield and downhole equipment, heavy-duty powertrain, and commercial refrigeration.

HSN80239 ships individually. Unit weight is approximately 3.75 g and nominal inside diameter is listed as 3 5/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.