568-133 HSN90 DURO ORINGS

APG stocks the HSN90133, an AS568-133 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 1.799 in (45.69 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.005 in (50.93 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to heat and oxidation, modern refrigerants, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) is known for the oil resistance of nitrile with substantially better heat capability, excellent abrasion and tear strength. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving strong oxidizing acids or esters call for a different compound.

It sees regular use in engine timing systems, automotive air conditioning, and commercial refrigeration.

Order part number HSN90133, sold individually. Unit weight is approximately 1.0725 g and nominal inside diameter is listed as 1 13/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.