568-236 HSN90 DURO ORINGS

HSN90236 is an AS568-236 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 3.234 in (82.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.512 in (89.2 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is widely chosen for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. The material holds up against modern refrigerants, sour gas and amine inhibitors, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Typical settings include commercial refrigeration, automotive air conditioning, and oilfield and downhole equipment.

Stocked as HSN90236 and sold individually. Unit weight is approximately 3.3939 g and nominal inside diameter is listed as 3 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.