568-310 GREEN HNBR (HSN) 70 ORINGS

Part number HS70310 is an AS568-310 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 0.475 in (12.07 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.895 in (22.73 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is widely chosen for strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. The material holds up against modern refrigerants, heat and oxidation, and sour gas and amine inhibitors. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

You will find this material specified across heavy-duty powertrain, commercial refrigeration, and automotive air conditioning.

HS70310 ships individually. Nominal inside diameter is listed as 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.