2x Square O-Rings 1-7/8" ID X 2" OD X 1/16" CS Buna-N Oring Nitrile -40 +250 F

Description

This sell is for TWO (2) Buna-N o-rings that are 2" in outside diameter. These are commonly used o-rings made from Nitrile (also known as Buna-N or NBR) a copolymer of Butadiene and Acrylonitirle.  They have a working temperature range of -40F to +250F (-40C to +121C). They are exceptionally resistant to petroleum based oils and fuels.  These o-rings perform well with most diluted acids, silicone oils & lubricants, petroleum fuels & oils, and for water applications. It is not recommended for use with ketones, aromatic hydrocarbons and phosphate ester hydraulic fluids. Nitrile o-rings are commonly used in hydraulic/pneumatic motors, cylinders, pumps and valves.
Buna-N O-Rings 70 Duro (NBR):
The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for use with ketones, aromatic hydrocarbons and phosphate ester hydraulic fluids. More than 50% of the Orings sold are Nitrile Orings, commonly used in hydraulic/pneumatic motors, cylinders, pumps and valves.
Buna-N / Nitrile Recommended uses:
General purpose sealing.
Petroleum oils and fluids.
Gasoline
Hydraulic fluids
L.P. gases
Cold Water.
Silicone greases and oils
Di-ester base lubricants (MIL-L-7808).
Ethylene glycol base fluids (Hydrolubes)
Nitrile is not recommended for:
Halogenated hydrocarbons (carbon tetrachloride, trichloroethylene)
Nitro hydrocarbons (nitrobenzene, aniline)
Phosphate ester hydraulic fluids (Skydrol, Fyrquel, Pydraul).
Ketones (MEK, acetone)
Ozone
Sunlight, UV
Weather
Strong Acids Ozone
Automotive brake fluid
Compound Info:
A general purpose, sulfur-cured Nitrile (Buna-N) compound
Color: Black
Duro: 70
FDA: No
ASTM D2000-99 Grade M2BG714 B14 EA14 EF11 EF21 EO14 EO34 Z1=TR10= -31.9C
B70 is designed to meet or exceed the properties of these popular Buna Nitrile Compounds:
N674-70, N100-70, 7507, B46-70, 4200-70, H14327, 4700-70 and 366Y
Operating temperature: -40° to +250°F
NOTICE:
Orders are typically filled every business day but expect two business days before shipment. If there is an issue with your purchase please contact us first and we will do our best to resolve it. Ebay calculated shipping is used, so if you are interested in multiple items being sold, add them to your cart before completing checkout and the shipping will automatically be combined. I will consider payment options other than PayPal. Sales tax will be collected by Ebay from those residing in states that require tax to be collected.
International Bidders:
Due to the high cost of shipping, I cannot accept returns. Please be sure you know what you are buying. Understand that I cannot control shipping after it leaves my possession, and it can take weeks to get to you.
Coins not included ;)