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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.
Tate
Reviewed in the United States on October 23, 2024
These were not the size listed and did not work for my application.Packaging and delivery were good.
Jordyn
Reviewed in Canada on July 20, 2020
This product came quick n was exactly like picture perfect 10/10 if u ask me
Ted van Ryn
Reviewed in Canada on November 21, 2020
Wife wanted to seal small vials holding paints for her fine art efforts. These O-Rings were a perfect fit to keep her oils from dying out.
Eric N. Solomonson
Reviewed in the United States on December 30, 2018
Perfect for for what I needed em for
Robert S.
Reviewed in the United States on May 27, 2016
Excellent product. just what I needed, and delivered very fast.
Amanda Knows
Reviewed in the United States on December 5, 2013
Exactly the correct size as ordered. Top quality rubber.I will be buying more again.Not sure what more to say but it says to add more words to my review.
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