568-124 HSN90 DURO ORINGS

Ordered as HSN90124, this is an AS568-124 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 1.237 in (31.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.443 in (36.65 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against ozone and weathering, petroleum oils and fuels, and sour gas and amine inhibitors. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is specified for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving ketones or strong oxidizing acids call for a different compound.

It sees regular use in oilfield and downhole equipment, commercial refrigeration, and engine timing systems.

Stocked as HSN90124 and sold individually. Nominal inside diameter is listed as 1 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.