NBR Parker N0756-75 O-Ring, Size 011, 0.301" ID x 0.070" CS

Parker’s N0756-75 is a 75-durometer black nitrile (NBR, Buna) O-ring material. N0756-75 is the commercial version of NM756-75, it is the same material with the same performance, but without the Mil-Spec certification. For more information on NM756-75 please visit that page. N0756-75 is an excellent general-purpose material that has good mechanical properties when compared to other elastomers. Nitrile compounds perform well in gasoline, crude oil, power-steering fluid, hexane, toluene, water, water-based hydraulic fluids, and dilute bases, such as sodium hydroxide. Because nitriles contain unsaturated carbon-carbon bonds in the base polymer, they are not suitable for exposure to ozone, sunlight, and weathering. Download our guide here.