*568-220 BLACK HNBR HSN70 O-Ring

This o-ring is supplied in AS568-220 black HNBR (Hydrogenated Nitrile) 70 Shore A with an inside diameter of 1.359 in (34.52 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.637 in (41.58 mm), catalogued under part number HSN70220. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against modern refrigerants, sour gas and amine inhibitors, and petroleum oils and fuels. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is widely chosen for excellent abrasion and tear strength, the oil resistance of nitrile with substantially better heat capability. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Common environments for this compound include automotive air conditioning, oilfield and downhole equipment, and engine timing systems.

HSN70220 ships individually. Unit weight is approximately 1.394 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.