568-226 BLACK HNBR HSN70 O-Ring

Ordered as HSN70226, this is an AS568-226 black HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.984 in (50.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.262 in (57.45 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. Expect good resistance to petroleum oils and fuels, ozone and weathering, and heat and oxidation. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Typical settings include engine timing systems, heavy-duty powertrain, and commercial refrigeration.

Order part number HSN70226, sold individually. Unit weight is approximately 1.9679 g and nominal inside diameter is listed as 2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.