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N70-1.78X8.73MM O-Ring Buna N70 1.78 X 8.73MM
O-Ring Buna Metric N70 1.78mm X 8.73mm O-Ring for various general purpose applications. with an operating temperature of between -40 Degrees F to +250 Degrees F
Buna-N O-Rings / Nitrile O-Rings / NBR: Buna-N O-Rings are the most widely used o-ring material in the world with 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.
Standard Buna-N O-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and similar fluids.
Applications: General purpose sealing, Air Tools, Hydraulic fluids, 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