HSN (HNBR) 80 568-121

APG stocks the HSN80121, an AS568-121 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring measuring an inside diameter of 1.049 in (26.64 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.255 in (31.88 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The material holds up against sour gas and amine inhibitors, petroleum oils and fuels, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).

Typical settings include heavy-duty powertrain, oilfield and downhole equipment, and engine timing systems.

Stocked as HSN80121 and sold individually. Unit weight is approximately 0.6627 g and nominal inside diameter is listed as 1 1/16 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.