568-218 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70218, this is an AS568-218 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.234 in (31.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.512 in (38.4 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to petroleum oils and fuels, sour gas and amine inhibitors, and heat and oxidation. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) delivers strong resistance to rapid gas decompression, excellent abrasion and tear strength. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across automotive air conditioning, commercial refrigeration, and heavy-duty powertrain.

Reference part number HS70218 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.