HSN (HNBR) 80 568-240

This o-ring is supplied in AS568-240 green HNBR (Hydrogenated Nitrile) 80 Shore A measuring an inside diameter of 3.734 in (94.84 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.012 in (101.9 mm), catalogued under part number HSN80240. It creates a positive seal at flange, piston and rod interfaces without added hardware.

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 compound resists sour gas and amine inhibitors, modern refrigerants, and heat and oxidation. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with ketones or strong oxidizing acids.

It sees regular use in automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

This item is sold individually under part number HSN80240. Nominal inside diameter is listed as 3 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.