-328 Silicone O-Ring, 70A Durometer, Red, 1-7/8" ID, 2-1/4" OD, 3/16" Width (Pack of 10)
 Price with discount: $8.26 | |
Product Details
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Customer Review
Perfect replacement...
I bought these as a replacement for a damaged O-Ring on my Nissan Thermos Travel Mug. These are perfectly suited to that task.
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Great replacement for Nissan spill proof travel mug
I bought these o-rings as a replacement on my Nissan spill proof travel mug. I use this mug all the time. It will keep a cup of freshly made tea or coffee hot for 3-4 hours if left closed, or at the right drinking temperature for a full hour. I tried to find a replacement for the o-ring at the Nissan website but could not. These o-rings are an excellent replacement. The mug closes water tight and works like new. Highly recommended for this application.
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Can be used to make an eye dropper ink fountain pen
These are very strong little o-rings, with plenty of tensile strength. I read a recent DIY article online about turning certain fountain pens (Platinum Preppy line) into eye dropper fountain pens using this size o-ring. I wanted to give it a try, and I must admit it worked like a charm. No leaks, perfect. Search online for "eye dropper fountain pen" and "o-ring" or perhaps "make your own" and you should be able to find it, if you're interested. Fun, and a good use of the pen and the ink.
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Product Description
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.
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