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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.
Giovanni
Reviewed in the United States on January 16, 2025
Our Snoo bassinet first began making creaking noises then eventually stopped every bit of motion. In doing some online research, other people experienced the same and discovered that simply swapping the worn out o-rings would fix this. After disassembling the bassinet and replacing the o-ring.. the Snoo was working as good as new. Movement was restored and the motion was quieter than before.
Josete
Reviewed in the United States on July 24, 2024
Our Snoo stopped moving and luckily I just had to replace this. They seem slightly thicker than the original ones, and I could only fit 2 instead of 3 rings. Still, the Snoo is working fine again.
Dave Felshaw
Reviewed in the United States on March 21, 2024
This was perfect to fix our snoo! A super cheap solution to a very expensive product. Came fast and is exactly what we needed
Richard
Reviewed in the United States on October 28, 2024
Worked great for replacing the Snoo motor O-rings. I was able to use 3 instead of 2
Josh S - Canada
Reviewed in Canada on January 7, 2024
bought for soony bassinet and fit and worked perfect. measurements were accurate
Vincent
Reviewed in the United States on November 25, 2023
Used these to repair a squeaky and mostly motionless SNOO bassinet. Good as new; perfect fit!
Leaf
Reviewed in the United States on August 2, 2022
Hopefully it shows the size I got.Fit great in place of the hard ill-fitting plastic tires.So far I've used them on the No.19 Lotus Race Car and the Alvis Stalwart and they fit tight and mimick the size of the originals pretty well.
Glen Sandy
Reviewed in the United States on January 30, 2022
Had to give it a one star as there are no zero stars. Not three sizes as stated in page title and description, only 1/4" o rings./ Buyer Beware.
Jason Henry
Reviewed in the United States on October 18, 2017
Did exactly what I needed them for!
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