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  • Buna O-Ring, 70A Durometer, Quad, Black
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Buna O-Ring, 70A Durometer, Quad, Black

Available in multiple versions

4 customer reviews

Price: $0.32 - $41.78
Product Specifications
Brand Name Small Parts
Material Type Nitrile Rubber
Hardness 70 A Durometer
System of Measurement Inch
Color Black
Cross Section Shape Quad
LowerTemperature Range -30  Degrees Fahrenheit
Upper Temperature Range 250  Degrees Fahrenheit
Specification Met AS568A
Durometer 70a
UNSPSC Code 31410000

This quad-ring is made of black Buna-nitrile (also called Buna-N), has a du... Read full product description



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Currently showing 1-20 of 144 Next »
Size Nominal Inside Diameter Nominal Outside Diameter Nominal Width Inside Diameter Outside Diameter Overall Width Number of Items Part Number Price Quantity
   
022 0.989 inches 1-1/8 inches 0.07 inches 0.989 inches 1-1/8 inches 0.07 inches 50 B0051XZO6Q
In Stock (3)
$4.08
Prime Eligible
023 1.051 inches 1-3/16 inches 0.07 inches 1.051 inches 1-3/16 inches 0.07 inches 50 B0051XZO7K
In Stock (1)
$13.18
Prime Eligible
024 1.114 inches 1-1/4 inches 0.07 inches 1.114 inches 1-1/4 inches 0.07 inches 50 B0051XZO98
In Stock (3)
$4.44
Prime Eligible
025 1.176 inches 1-5/16 inches 0.07 inches 1.176 inches 1-5/16 inches 0.07 inches 50 B0051XZOCA
In Stock (3)
$8.57
Prime Eligible
026 1.239 inches 1-3/8 inches 0.07 inches 1.239 inches 1-3/8 inches 0.07 inches 50 B0051XZOF2
In Stock (2)
$13.69
Prime Eligible
027 1.301 inches 1-7/16 inches 0.07 inches 1.301 inches 1-7/16 inches 0.07 inches 50 B0051XZOJ8
In Stock (3)
$4.73
Prime Eligible
028 1.364 inches 1-1/2 inches 0.07 inches 1.364 inches 1-1/2 inches 0.07 inches 25 B000N41NBS
In Stock (1)
$9.13
Prime Eligible
028 1.364 inches 1-1/2 inches 0.07 inches 1.364 inches 1-1/2 inches 0.07 inches 50 B0051XZOLG
In Stock (2)
$13.48
Prime Eligible
029 1.489 inches 1-5/8 inches 0.07 inches 1.489 inches 1-5/8 inches 0.07 inches 50 B0051XZONE
In Stock (4)
$14.33
Prime Eligible
030 1.614 inches 1-3/4 inches 0.07 inches 1.614 inches 1-3/4 inches 0.07 inches 50 B0051XZOO8
Usually ships in 3 to 4 weeks
$14.82
Prime Eligible
031 1.739 inches 1-7/8 inches 0.07 inches 1.739 inches 1-7/8 inches 0.07 inches 50 B0051XZOPM
In Stock (3)
$16.79
Prime Eligible
032 1.864 inches 2 inches 0.07 inches 1.864 inches 2 inches 0.07 inches 50 B0051XZOUM
In Stock (1)
$11.34
Prime Eligible
033 1.989 inches 2-1/8 inches 0.07 inches 1.989 inches 2-1/8 inches 0.07 inches 50 B0051XZOY8
In Stock (1)
$19.54
Prime Eligible
034 2.114 inches 2-1/4 inches 0.07 inches 2.114 inches 2-1/4 inches 0.07 inches 25 B000N41K20
In Stock (1)
$26.43
Prime Eligible
034 2.114 inches 2-1/4 inches 0.07 inches 2.114 inches 2-1/4 inches 0.07 inches 50 B0051XZP56
In Stock (1)
$20.37
Prime Eligible
039 2.739 inches 2-7/8 inches 0.07 inches 2.739 inches 2-7/8 inches 0.07 inches 1 B000N41NH2
In Stock (1)
$7.43
Prime Eligible
040 2.864 inches 3 inches 0.07 inches 2.864 inches 3 inches 0.07 inches 25 B0051XZP8I
In Stock (1)
$18.38
Prime Eligible
041 2.989 inches 3-1/8 inches 0.07 inches 2.989 inches 3-1/8 inches 0.07 inches 25 B0051XZPD8
Usually ships in 3 to 4 weeks
$19.35
Prime Eligible
042 3.239 inches 3-3/8 inches 0.07 inches 3.239 inches 3-3/8 inches 0.07 inches 25 B0051XZPH4
In Stock (1)
$19.71
Prime Eligible
044 3.739 inches 3-7/8 inches 0.07 inches 3.739 inches 3-7/8 inches 0.07 inches 25 B0051XZPK6
In Stock (1)
$27.74
Prime Eligible
Currently showing 1-20 of 144 Next »
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Product Features

  • Made of Buna-nitrile for use with a variety of fluids and hydrocarbons
  • Four-lobe shape for lower friction and resistance to twisting
  • Can be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)
  • Quad-ring, four-lobe design for increased sealing surface and resistance to leakage
  • Durometer of 70A for resistance to penetration

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B003SLE5JU
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (4 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

This quad-ring is made of black Buna-nitrile (also called Buna-N), has a durometer (hardness) of 70A, and can be used in a wide variety of static and dynamic sealing applications.

This Buna-nitrile quad-ring has high tensile strength, and abrasion, tear, and compression set resistance. Buna-nitrile 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, and other aliphatic hydrocarbons. Buna-nitrile is vulnerable to ozone, sunlight, and weathering and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with direct exposure to UV light.

Buna-nitrile quad-rings have 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.

Quad-rings, also called X-rings, provide a pressure and fluid seal between overlapping surfaces in static and dynamic sealing applications, and are commonly used in engines, faucets, flanges, valves, and various cylinders. They have a four-lobe design, to provide two contact points, which results in less friction, twisting and leakage. Quad-rings are available in a number of different sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.

Buna quad-rings meet standards defined by Aerospace Standard AS568A, Aerospace Size Standard for O-rings.


Customer Questions & Answers

Customer Reviews

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25%
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Most Helpful Customer Reviews

By Heather McKinney on February 5, 2015
Size: 343Nominal Width: 0.21Overall Width: 0.21Outside Diameter: 4-1/8Inside Diameter: 3.725Nominal Inside Diameter: 3.725Number of Items: 10Nominal Outside Diameter: 4-1/8 Verified Purchase
I couldn't find any pool pump rings that were affordable and worked well without leaking. Found this, works perfectly and much more cost effective! I will continue to buy these rings going forward! They are great!
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By David So on November 26, 2014
Size: 206Nominal Width: 0.139Overall Width: 0.139Outside Diameter: 3/4Inside Diameter: 0.484Nominal Inside Diameter: 0.484Number of Items: 25Nominal Outside Diameter: 3/4 Verified Purchase
This item worked out great for my use.
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By Dale M on December 11, 2014
Size: 331Nominal Width: 0.21Overall Width: 0.21Outside Diameter: 2-5/8Inside Diameter: 2.225Nominal Inside Diameter: 2.225Number of Items: 10Nominal Outside Diameter: 2-5/8 Verified Purchase
As expected, timely shipping.
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By David on October 22, 2014
Size: 343Nominal Width: 0.21Overall Width: 0.21Outside Diameter: 4-1/8Inside Diameter: 3.725Nominal Inside Diameter: 3.725Number of Items: 10Nominal Outside Diameter: 4-1/8 Verified Purchase
Exactly what I needed!!!
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