568-264 BLACK HNBR HSN70 O-Ring

Part number HSN70264 is an AS568-264 black HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 7.484 in (190.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.762 in (197.15 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists sour gas and amine inhibitors, heat and oxidation, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is specified for the oil resistance of nitrile with substantially better heat capability, excellent abrasion and tear strength. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Applications involving chlorinated hydrocarbons or esters call for a different compound.

Common environments for this compound include commercial refrigeration, heavy-duty powertrain, and engine timing systems.

Order part number HSN70264, sold individually. Unit weight is approximately 7.055 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.