568-348 HSN90 DURO ORINGS

The HSN90348 is an AS568-348 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 4.35 in (110.49 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.77 in (121.16 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is valued for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. Expect good resistance to sour gas and amine inhibitors, ozone and weathering, and modern refrigerants. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It should not be specified for service in chlorinated hydrocarbons or esters.

You will find this material specified across automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

Stocked as HSN90348 and sold individually. Unit weight is approximately 10.519 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.