HSN (HNBR) 80 568-267

This o-ring is supplied in AS568-267 green HNBR (Hydrogenated Nitrile) 80 Shore A with an inside diameter of 8.234 in (209.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.512 in (216.2 mm), catalogued under part number HSN80267. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists ozone and weathering, sour gas and amine inhibitors, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) delivers strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where strong oxidizing acids or chlorinated hydrocarbons are present.

It sees regular use in engine timing systems, oilfield and downhole equipment, and automotive air conditioning.

Reference part number HSN80267 when ordering; the item is sold individually. Unit weight is approximately 8.9356 g and nominal inside diameter is listed as 8 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.