Shopping Cart

Your cart is empty.

Your cart is empty.

232 Buna-N O-Ring, 70A Durometer, Black, 2-3/4' ID, 3' OD, 1/8' Width (Pack of 50)

Free shipping on orders over CA $49.99

CA $15.60

CA $ 6 .99 CA $6.99

In Stock

About this item

  • Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbons
  • 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
  • Durometer (hardness) of 70A for resistance to penetration
  • Meets standards defined by Aerospace Standard AS568A


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.


Gary
Reviewed in the United States on December 23, 2024
New
Recommended Products

CA $21.68

CA $ 9 .99 CA $9.99

4.3
Select Option

CA $11.49

CA $ 5 .99 CA $5.99

4.5
Select Option

CA $8.36

CA $ 3 .99 CA $3.99

4.4
Select Option

CA $8.92

CA $ 3 .99 CA $3.99

4.9
Select Option

CA $17.03

CA $ 6 .99 CA $6.99

4.5
Select Option

CA $9.39

CA $ 3 .99 CA $3.99

4.8
Select Option