568-911 HSN90 DURO ORINGS

APG stocks the HSN90911, an AS568-911 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 0.863 in (21.92 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.095 in (27.81 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. The material holds up against heat and oxidation, ozone and weathering, and modern refrigerants. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where ketones or chlorinated hydrocarbons are present.

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

Stocked as HSN90911 and sold individually. Nominal inside diameter is listed as 11/16 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.