568-454 HSN90 DURO ORINGS

Part number HSN90454 is an AS568-454 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 12.475 in (316.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.025 in (330.84 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. This material stands up to petroleum oils and fuels, heat and oxidation, and sour gas and amine inhibitors. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Exposure to chlorinated hydrocarbons or esters will shorten service life.

It sees regular use in heavy-duty powertrain, commercial refrigeration, and automotive air conditioning.

Reference part number HSN90454 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.