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Buna O-Ring, 70A Durometer, Round, Black (Metric)

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Product Specifications
Nominal Width
n/a  millimeters
Material Type
Nitrile Rubber
Color Name
Black
Outside Diameter
n/a  millimeters
Nominal Inside Diameter
n/a  millimeters
Brand Name
Small Parts
Size Name
n/a
Upper Temperature Range
250  Degrees Fahrenheit
Cross Section Shape
Round
Hardness
70 A Durometer
UNSPSC Code
31410000
Nominal Outside Diameter
n/a  millimeters
LowerTemperature Range
-30  Degrees Fahrenheit
System of Measurement
Metric

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Currently showing 1-20 of 417 Next 20 »
10 millimeters 1.5 millimeters 100 B00595JPT8 yes $11.71 Buy Options
11 millimeters 1.5 millimeters 100 B00595JR5K yes $5.64 Buy Options
11.5 millimeters 1.5 millimeters 100 B00595JSF4 yes $9.78 Buy Options
12 millimeters 1.5 millimeters 100 B00595JTN0 yes $6.15 Buy Options
13 millimeters 1.5 millimeters 100 B000FMYB94 yes $9.29 Buy Options
13.5 millimeters 1.5 millimeters 100 B00595JUGG yes $11.37 Buy Options
14 millimeters 1.5 millimeters 100 B00595JVIS yes $8.21 Buy Options
14.5 millimeters 1.5 millimeters 100 B00595JX2C yes $5.00 Buy Options
15 millimeters 1.5 millimeters 100 B00595JXZY yes $11.95 Buy Options
15.5 millimeters 1.5 millimeters 100 B00595JZ02 yes $9.78 Buy Options
16 millimeters 1.5 millimeters 100 B000FN0TSK yes $7.59 Buy Options
17 millimeters 1.5 millimeters 100 B00595K05G yes $7.77 Buy Options
17.5 millimeters 1.5 millimeters 100 B00595K1LO yes $11.82 Buy Options
18 millimeters 1.5 millimeters 100 B00595K2NQ yes $12.89 Buy Options
19 millimeters 1.5 millimeters 100 B00595K42K yes $12.21 Buy Options
19.5 millimeters 1.5 millimeters 100 B00595K574 yes $11.49 Buy Options
2 millimeters 1.5 millimeters 100 B00595K6MS yes $8.42 Buy Options
20 millimeters 1.5 millimeters 100 B00595K7HW yes $9.53 Buy Options
21.5 millimeters 1.5 millimeters 100 B00595K9TS yes $12.57 Buy Options
22 millimeters 1.5 millimeters 100 B00595KB9G yes $12.18 Buy Options

Key Features

  • Made of Buna-nitrile 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

Product Description

This O-ring is made of Buna-nitrile (also called Buna-N), 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, resistance to abrasion, tear, and compression set resistance. It is acceptable for temperature applications between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C). It 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 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 cylinders of various sorts. 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 a number of sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.

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