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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
Nominal ID
n/a  millimeters
Brand Name
Small Parts
Dash Size
n/a
Cross Section Shape
Round
Upper Temperature Range
250  Degrees Fahrenheit
Hardness
70 A Durometer
Nominal OD
n/a  millimeters
LowerTemperature Range
-30  Degrees Fahrenheit
System of Measurement
Metric

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Currently showing 1-20 of 404 Next 20 »
10 mm 13 mm 1.5 mm 100 B00595JPT8 3 $9.68 Buy Options
11 mm 14 mm 1.5 mm 100 B00595JR5K 1 $5.08 Buy Options
12 mm 15 mm 1.5 mm 100 B00595JTN0 4 $5.54 Buy Options
13 mm 16 mm 1.5 mm 100 B000FMYB94 3 $9.77 Buy Options
13.5 mm 16.5 mm 1.5 mm 100 B00595JUGG 1 $10.13 Buy Options
14 mm 17 mm 1.5 mm 100 B00595JVIS 1 $6.30 Buy Options
14.5 mm 17.5 mm 1.5 mm 100 B00595JX2C 2 $4.50 Buy Options
15 mm 18 mm 1.5 mm 100 B00595JXZY 2 $9.52 Buy Options
15.5 mm 18.5 mm 1.5 mm 100 B00595JZ02 3 $10.59 Buy Options
16 mm 19 mm 1.5 mm 100 B000FN0TSK Usually ships in 3 to 5 weeks $6.83 Buy Options
17 mm 20 mm 1.5 mm 100 B00595K05G 2 $6.99 Buy Options
17.5 mm 20.5 mm 1.5 mm 100 B00595K1LO 1 $11.09 Buy Options
18 mm 21 mm 1.5 mm 100 B00595K2NQ 1 $12.01 Buy Options
19 mm 22 mm 1.5 mm 100 B00595K42K 1 $11.10 Buy Options
19.5 mm 22.5 mm 1.5 mm 100 B00595K574 1 $11.14 Buy Options
2 mm 5 mm 1.5 mm 100 B00595K6MS 3 $8.38 Buy Options
20 mm 23 mm 1.5 mm 100 B00595K7HW Usually ships in 3 to 4 weeks $10.52 Buy Options
21.5 mm 24.5 mm 1.5 mm 100 B00595K9TS 2 $12.80 Buy Options
23 mm 26 mm 1.5 mm 100 B00595KCIQ 4 $12.31 Buy Options
25 mm 28 mm 1.5 mm 100 B00595KENY 3 $12.44 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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