231 Buna-N O-Ring, 70A Durometer, Black, 2-5/8
Type
Price
Date
Current Price
$6.15
2024-08-28
Highest Price
$9.42
2022-09-06
Lowest Price
$6.15
2024-08-28

231 Buna-N O-Ring, 70A Durometer, Black, 2-5/8" ID, 2-7/8" OD, 1/8" Width (Pack of 10)

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.

  • Title231 Buna-N O-Ring, 70A Durometer, Black, 2-5/8" ID, 2-7/8" OD, 1/8" Width (Pack of 10)
  • BrandMr O-Ring
  • ManufacturerSmall Parts
  • BindingMisc.
  • ProductGroupBISS
  • ItemPartNumberORB-231-10
  • Model231
  • ColorBlack
  • Size231
  • UnitCount10