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

Available in multiple versions

4.8 out of 5 stars 6 customer reviews

Price: $4.08 - $76.74
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

Currently showing 1-20 of 139 Next »
ASIN
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Size Nominal Inside Diameter Nominal Outside Diameter Nominal Width Inside Diameter Outside Diameter Overall Width Number of Items Price Quantity
   
B0051XZO6Q 022 0.989 inches 1-1/8 inches 0.07 inches 0.989 inches 1-1/8 inches 0.07 inches 50
$18.19
B0051XZO7K 023 1.051 inches 1-3/16 inches 0.07 inches 1.051 inches 1-3/16 inches 0.07 inches 50
$17.02
B0051XZO98 024 1.114 inches 1-1/4 inches 0.07 inches 1.114 inches 1-1/4 inches 0.07 inches 50
$17.86
B0051XZOCA 025 1.176 inches 1-5/16 inches 0.07 inches 1.176 inches 1-5/16 inches 0.07 inches 50
$5.25
+ Shipping
B0051XZOF2 026 1.239 inches 1-3/8 inches 0.07 inches 1.239 inches 1-3/8 inches 0.07 inches 50
$21.43
B0051XZOJ8 027 1.301 inches 1-7/16 inches 0.07 inches 1.301 inches 1-7/16 inches 0.07 inches 50
$5.28
+ Shipping
B0051XZOLG 028 1.364 inches 1-1/2 inches 0.07 inches 1.364 inches 1-1/2 inches 0.07 inches 50
$22.37
B0051XZONE 029 1.489 inches 1-5/8 inches 0.07 inches 1.489 inches 1-5/8 inches 0.07 inches 50
$22.82
B0051XZOO8 030 1.614 inches 1-3/4 inches 0.07 inches 1.614 inches 1-3/4 inches 0.07 inches 50
$7.77
+ Shipping
B0051XZOPM 031 1.739 inches 1-7/8 inches 0.07 inches 1.739 inches 1-7/8 inches 0.07 inches 50
$23.37
B0051XZOUM 032 1.864 inches 2 inches 0.07 inches 1.864 inches 2 inches 0.07 inches 50
$19.06
B0051XZOY8 033 1.989 inches 2-1/8 inches 0.07 inches 1.989 inches 2-1/8 inches 0.07 inches 50
$22.00
B000N41K20 034 2.114 inches 2-1/4 inches 0.07 inches 2.114 inches 2-1/4 inches 0.07 inches 25
$25.86
B0051XZP56 034 2.114 inches 2-1/4 inches 0.07 inches 2.114 inches 2-1/4 inches 0.07 inches 50
$21.67
B000N3WKYI 038 2.614 inches 2-3/4 inches 0.07 inches 2.614 inches 2-3/4 inches 0.07 inches 1
$12.17
+ Shipping
B0051XZP8I 040 2.864 inches 3 inches 0.07 inches 2.864 inches 3 inches 0.07 inches 25
$24.23
B0051XZPD8 041 2.989 inches 3-1/8 inches 0.07 inches 2.989 inches 3-1/8 inches 0.07 inches 25
$21.26
B0051XZPH4 042 3.239 inches 3-3/8 inches 0.07 inches 3.239 inches 3-3/8 inches 0.07 inches 25
$30.16
B0051XZPK6 044 3.739 inches 3-7/8 inches 0.07 inches 3.739 inches 3-7/8 inches 0.07 inches 25
$48.66
B0051XZPNI 045 3.989 inches 4-1/8 inches 0.07 inches 3.989 inches 4-1/8 inches 0.07 inches 25
$52.16
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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 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.


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 (6 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

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Top Customer Reviews

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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Size: 348Nominal Width: 0.21Overall Width: 0.21Outside Diameter: 4-3/4Inside Diameter: 4.35Nominal Inside Diameter: 4.35Number of Items: 5Nominal Outside Diameter: 4-3/4 Verified Purchase
This was the fix for the leaking hydraulic reservoir on the lippert slide pump on out rv.
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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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