568-281 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70281, this is an AS568-281 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 14.984 in (380.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 15.262 in (387.65 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to heat and oxidation, modern refrigerants, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) is widely chosen for improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Verify compatibility before use with strong oxidizing acids or chlorinated hydrocarbons.

Typical settings include commercial refrigeration, heavy-duty powertrain, and engine timing systems.

Reference part number HS70281 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.