HSN (HNBR) 80 568-327

Ordered as HSN80327, this is an AS568-327 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring measuring an inside diameter of 1.725 in (43.82 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.145 in (54.48 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The compound resists petroleum oils and fuels, heat and oxidation, and ozone and weathering. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. It is not the right choice where strong oxidizing acids or esters are present.

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

Reference part number HSN80327 when ordering; the item is sold individually. Unit weight is approximately 4.425 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.