Hydrogenated Nitrile Rubber O-Rings (HNBR) Green and Black
Highly Saturated Nitrile Green O-rings in 70 durometer. Hydrogenation of nitrile rubber removes most of the residual unsaturation in the polymer to make it far less vulnerable to attack by heat, ozone, and oxygen. In fact, due to superior oil and temperature resistance, Highly Saturated Nitrile can sometimes be substituted for more costly fluorocarbon rubber. It is frequently used in automotive air conditioning systems employing R-134a refrigerants. It exhibits good resistance to petroleum based oils, compression set and a variety of Freons.
Non-stock or 0 in stock HNBR Metric O-rings are 4-5 weeks with a $250 per size minimum: Black HNBR 70 or Green HNBR 70 (No Return on Metrics) Large quantities, size not listed, or other specs please click this link to Request a Price Quote.