HSN (HNBR) 80 568-323

This o-ring is supplied in AS568-323 green HNBR (Hydrogenated Nitrile) 80 Shore A with an inside diameter of 1.287 in (32.69 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.707 in (43.36 mm), catalogued under part number HSN80323. It delivers dependable bidirectional sealing in a compact groove envelope.

As a material, HNBR (Hydrogenated Nitrile) is widely chosen for excellent abrasion and tear strength, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to modern refrigerants, petroleum oils and fuels, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Verify compatibility before use with esters or strong oxidizing acids.

It sees regular use in oilfield and downhole equipment, automotive air conditioning, and engine timing systems.

HSN80323 ships individually. Unit weight is approximately 3.544 g and nominal inside diameter is listed as 1 5/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.