HSN (HNBR) 80 568-333

APG stocks the HSN80333, an AS568-333 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 2.475 in (62.87 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.895 in (73.53 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The compound resists heat and oxidation, ozone and weathering, and modern refrigerants. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where esters or ketones are present.

It sees regular use in heavy-duty powertrain, commercial refrigeration, and engine timing systems.

This item is sold individually under part number HSN80333. Unit weight is approximately 6.126 g and nominal inside diameter is listed as 2 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.