Square Buna-N Nitrile (NBR) O-Rings 70 Durometer
Buna-N O-Rings / Nitrile O-Rings / NBR: Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the world because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, propane, natural gas and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others.
Applications: General purpose sealing, Hydraulic fluids, Air Tools, Petroleum based oils, fuels, L.P. gases, Cold Water, Silicone greases and oils, Di-ester base lubricants (MIL-L-7808), Ethylene glycol base fluids (Hydrolubes) and Hydraulic Fluidsand in static and dynamic applications.
Avoid: Brake fluids, ozone and UV light