568-470 HSN90 DURO ORINGS

HSN90470 is an AS568-470 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, the oil resistance of nitrile with substantially better heat capability. The material holds up against ozone and weathering, modern refrigerants, and sour gas and amine inhibitors. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service.

You will find this material specified across commercial refrigeration, engine timing systems, and oilfield and downhole equipment.

Reference part number HSN90470 when ordering; the item is sold individually. Nominal inside diameter is listed as 21 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.