568-204 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70204, an AS568-204 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.359 in (9.12 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.637 in (16.18 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. The compound resists modern refrigerants, sour gas and amine inhibitors, and heat and oxidation. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service.

You will find this material specified across automotive air conditioning, engine timing systems, and heavy-duty powertrain.

HS70204 ships individually. Nominal inside diameter is listed as 3/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.