APG stocks the HS70268, an AS568-268 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 8.484 in (215.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.762 in (222.55 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 valued for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. Expect good resistance to modern refrigerants, petroleum oils and fuels, and ozone and weathering. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).
Maintenance and OEM teams specify it across commercial refrigeration, heavy-duty powertrain, and engine timing systems.
Reference part number HS70268 when ordering; the item is sold individually. Nominal inside diameter is listed as 8 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 568-268 GREEN HNBR (HSN) 70 ORINGS
uf_description2 8.484" (215.49MM) ID X .139" (3.53MM)
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 8.484 inch (215.49 mm)
Actual_OD 8.762 inch (222.55 mm)
ProductCode Description O-Rings - Bulk - Premium