568-155 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70155, this is an AS568-155 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.987 in (101.27 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.193 in (106.5 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is valued for excellent abrasion and tear strength, improved ozone and weathering resistance over standard nitrile. Expect good resistance to modern refrigerants, petroleum oils and fuels, and sour gas and amine inhibitors. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving chlorinated hydrocarbons or esters call for a different compound.

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

Reference part number HS70155 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.