- Made of Buna-nitrile for use with a variety of fluids and hydrocarbons
- Can be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)
- Round in cross-section to provide a seal between cylindrical overlapping surfaces
- Durometer (hardness) of 70A for resistance to penetration
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Buna O-Ring, 70A Durometer, Round, Black (Metric)
|Price:||$0.97 - $59.95|
|Brand Name||Small Parts|
|Material Type||Nitrile Rubber|
|Hardness||70 A Durometer|
|System of Measurement||Metric|
|Cross Section Shape||Round|
|Nominal Inside Diameter||n/a mm|
|Nominal Outside Diameter||n/a mm|
|Nominal Width||n/a mm|
|LowerTemperature Range||-30 Degrees Fahrenheit|
|Upper Temperature Range||250 Degrees Fahrenheit|
|Outside Diameter||n/a mm|
This O-ring is made of Buna-nitrile (also called Buna-N), round in cross-se... See more product details
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This O-ring is made of Buna-nitrile (also called Buna-N), round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.
Buna-nitrile can have high tensile strength, resistance to abrasion, tear, and compression set resistance. It is acceptable for temperature applications between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C). It is compatible for use with petroleum, HFA, HFB, and HFC fluids, vegetable oil, alcohol, acids, and aliphatic hydrocarbons. Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight, and weathering, and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.
This O-ring has a shore durometer of 70A. Shore durometer is the hardness of a material, and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100, with 100 indicating no indentation.
O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves and cylinders of various sorts. They are circular in shape, with a round cross section and a hole in the center, similar to a doughnut. O-rings are available in a number of sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.
Top Customer Reviews
With the key remover that came with the keyboard, they were very easy to install. It only took me about 30 minutes to do my full sized keyboard. The only tricky part was removing and re-installing the brackets for the larger keys.
This simple mod dramatically improved the feel of my already amazing Cherry MX Blue keys, and reduced the ridiculous amount of noise that they produce.
They work fine. They were packaged well. They arrived on time.
Most Recent Customer Reviews
If you need to replace your GHK M4 GBB BUs black o-ring, this is the right one.Published 11 months ago by clarehuang
Use these O rings on your reloading dies in your Hornady lock n load progressive press instead of the factory ones. It keeps the dies from loosening while reloading ammunition.Published 12 months ago by Big Sarge
I got these little O rings to keep badges and buttons from spinning around on my name tag at work. They now stay oriented without me constantly fiddling with them!Published 12 months ago by Randy
Great product. Sell several of these on ebay for replacement for APV'sPublished 13 months ago by JMS_Indiana