568-393 HSN90 DURO ORINGS

Part number HSN90393 is an AS568-393 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 23.94 in (608.08 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 24.36 in (618.74 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is valued for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The compound resists modern refrigerants, petroleum oils and fuels, and ozone and weathering. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Applications involving ketones or strong oxidizing acids call for a different compound.

Typical settings include engine timing systems, commercial refrigeration, and oilfield and downhole equipment.

Stocked as HSN90393 and sold individually. Nominal inside diameter is listed as 24 inch. Check the compound against your process media, pressure and temperature before committing to a design.