*568-458 HSN90 DURO ORINGS

HSN90458 is an AS568-458 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 14.475 in (367.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 15.025 in (381.64 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to petroleum oils and fuels, heat and oxidation, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) delivers the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Applications involving ketones or strong oxidizing acids call for a different compound.

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

This item is sold individually under part number HSN90458. Unit weight is approximately 58.267 g and nominal inside diameter is listed as 14 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.