HSN (HNBR) 80 568-342

This o-ring is supplied in AS568-342 green HNBR (Hydrogenated Nitrile) 80 Shore A with an inside diameter of 3.6 in (91.44 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.02 in (102.11 mm), catalogued under part number HSN80342. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists ozone and weathering, heat and oxidation, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) offers improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across oilfield and downhole equipment, engine timing systems, and heavy-duty powertrain.

HSN80342 ships individually. Unit weight is approximately 8.89 g and nominal inside diameter is listed as 3 5/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.