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This O-ring is made of black Buna-nitrile, is 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, and abrasion, tear, and compression set resistance. It can be used in temperatures between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C), and 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 Buna 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 various cylinders. 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 various sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.
These Buna-nitrile O-rings meet standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.
Brenda Fisher
Reviewed in the United States on September 15, 2016
Yep they are o-rings, what more to say?
jerry
Reviewed in the United States on March 12, 2016
GREAT PRODUCT AT A GOOD PRICE
Tonya
Reviewed in the United States on March 1, 2016
These little rings worked great if you use the right fitting to ensure proper seal. These were a little big for my project but I was able to use them for other projects so no worries.
Old Retired Man
Reviewed in the United States on February 1, 2016
Nice! These fit my PRod perfectly.. No more leaks, and I have extras.. Enough for the next 30 years..
Philip
Reviewed in the United States on April 9, 2016
perfect for my Umarex Fusion CO2 rifle. Seals as good as factory silicone o-ring.
BrotherWheels
Reviewed in the United States on May 1, 2015
I used these o-rings to repair the seals in my Benjamin Marauder pistol.
Hubbard E.
Reviewed in the United States on February 19, 2015
We bought this for our schools ELMECO slushie machine, however, the spigots started leaking shortly after they were installed. We had to go back to the original clear O-rings from the company.
Michael
Reviewed in the United States on November 26, 2015
These inexpensive O-rings repaired my leaking faucets quickly, and since we have several sinks, I am ready to stop all future leaks.
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