568-409 HSN90 DURO ORINGS

This o-ring is supplied in AS568-409 green HNBR (Hydrogenated Nitrile) 90 Shore A supplied with an inside diameter of 2.475 in (62.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.025 in (76.84 mm), catalogued under part number HSN90409. It delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) delivers improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. It resists ozone and weathering, heat and oxidation, and petroleum oils and fuels. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Exposure to strong oxidizing acids or ketones will shorten service life.

It sees regular use in commercial refrigeration, heavy-duty powertrain, and engine timing systems.

Reference part number HSN90409 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 1/2 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.