167 Buna-N O-Ring, 70A Durometer, Black, 7" ID, 7-3/16" OD, 3/32" Width (Pack of 1)

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167 Buna-N O-Ring, 70A Durometer, Black, 7" ID, 7-3/16" OD, 3/32" Width (Pack of 1)
by Small Parts
(15)

New!: $0.39 (as of 01/14/2013 10:47 PST)

Seals & O-Rings

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.

• Rank: #26 in BISS
• Size: 167
• Color: Black
• Brand: Small Parts
• Model: 167
• Number of items: 1

• 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