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This silicone O-ring is red in color, round in shape, has a durometer of 7OA, and is designed for use in a wide variety of sealing applications.
Silicone is acceptable for temperature applications between -65 degrees F (-54 degrees C) to 450 degrees F (232 degrees C). It has good resistance to ozone, weather, detergent, salt water, engine and transmission oil, non-petroleum brake fluid, hydraulic fluids that resist fire, vegetable and animal oils, and high molecular weight chlorinated aromatic hydrocarbons. Silicone is vulnerable to mechanical wear and tear, water and steam over 250 degrees F (121 degrees C), aromatic hydrocarbons (benzene), chlorinated hydrocarbons (trichloroethylene), acids and bases, and hydrocarbon fuels.
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 a number of sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.
This silicone 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.
This silicone O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.
Spock’s Nephew
Reviewed in Canada on February 10, 2025
Exactly what I needed.
Kindle Customer
Reviewed in the United States on January 6, 2025
Perfect for 1/2x28 thread protector cap (or other barrel end devices) on barrels. Used on 4 different barrels of different OD sizes (same thread obviously). Handles heat well and holds up to taking cap on and off a lot without too much wear.
Levi Wilder
Reviewed in the United States on October 22, 2024
I have a CZ with threaded portions, and needed a way to keep the thread protector from walking off during use, This size worked rather well for it, and have yet to see any failure from the part itself
Khanh Hoang
Reviewed in the United States on June 5, 2023
Works on my Henry 22LR, these orings for the magazine tube gets lost all the time, this was a great replacement for my Henry 22LR Frontier
scott
Reviewed in the United States on August 8, 2022
Got a few extra, and worked for me. Seems like decent quality.
Matt
Reviewed in the United States on September 16, 2020
These were bigger than what I thought I was ordering.
POPS
Reviewed in the United States on October 18, 2020
I found these to be just what i was looking for. I bought these to use on the break-barrel of my rifle. they are a perfect fit. SO GLAD that i found these. MADE MY DAY! T. R.
sheilam90254
Reviewed in the United States on January 23, 2020
these rings are awesome! I got them for my knitting habit, to use as stitch markers. The traditional ones are hard plastic, too rigid for my taste, and the new silicone ones are great, but all of them are so easy to misplace and get lost a lot. Your O-rings come in large quantities for half the price or less, and though I wish these were a vibrant color, say turquoise or lilac lol, it really doesn't matter what color they are, they just do their job. Expect more orders from me, and from my fellow knitters I tell about your product. Thank you!!
Rewire2000
Reviewed in Canada on March 16, 2019
O-rings as described.
Joel Hall
Reviewed in the United States on October 2, 2019
They are precisely what I needed, and they work quite well.I used these as friction-fit baskets on orifice reducers for an electric spinning wheel, and they worked perfectly. Consistent size, just flexible enough.
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