Saturday, January 21, 2012

Best Deal -043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50) Sale !

Weekly Sales -043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50)





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-043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50) Description


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.


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-043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50) Details


  • Meets standards defined by Aerospace Standard AS568A
  • Durometer (hardness) of 70A for resistance to penetration
  • Can be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)
  • Round in cross-section to provide a seal between cylindrical overlapping surfaces
  • Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbons
  • Brand: Small Parts
  • Model: 043
  • Product Type: Misc.
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Great Deals -043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50). You can Buy -043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50) In Stock. Best Prices -043 Buna O-Ring, 70A Durometer, Black, 3-1/2" ID, 3-5/8" OD, 1/16" Width (Pack of 50) Buy Now Free Shipping !




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Small Parts 043 Review by Stanley E. Kessler (Pa)

I'm always running for o rings for something now I have a stock at home.


Small Parts 043 Review by Marc L. Pirro

The o-rings are as described so what's not to like. The price is reasonable and they arrived within a week. I'll try this source again when looking for small parts.


Small Parts 043 Review by Phil "pga217" (Cheshire, CT)

It's an O-Ring. It was round. It worked. (Why am I writing a review on this....)

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