HSN (HNBR) 80 568-156

APG stocks the HSN80156, an AS568-156 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring with an inside diameter of 4.237 in (107.62 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.443 in (112.85 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is specified here for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. It resists petroleum oils and fuels, sour gas and amine inhibitors, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with strong oxidizing acids or ketones.

It sees regular use in oilfield and downhole equipment, automotive air conditioning, and commercial refrigeration.

Reference part number HSN80156 when ordering; the item is sold individually. Unit weight is approximately 2.3855 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.