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Polyurethane O-Ring, 90A Durometer, Round, Translucent

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Product Specifications
Material Type
Color Name
Brand Name
Small Parts
Cross Section Shape
Upper Temperature Range
212  Degrees Fahrenheit
Specification Met
90 A Durometer
LowerTemperature Range
-60  Degrees Fahrenheit
System of Measurement

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Currently showing 1-14 of 14
Dash Size Nominal ID Nominal OD Nominal Width Actual ID Actual OD Actual Width Pkg Qty ASIN

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Currently showing 1-14 of 14
006 0.114" 1/4" 0.07" 0.114" 0.254" 0.07" 25 B0053UNN8S yes $14.82 Buy Options
007 0.145" 9/32" 0.07" 0.145" 0.285" 0.07" 25 B0053UOSKK yes $9.78 Buy Options
008 0.176" 5/16" 0.07" 0.176" 0.316" 0.07" 25 B0053UOU9O yes $9.80 Buy Options
009 0.208" 11/32" 0.07" 0.208" 0.348" 0.07" 25 B0053UOVFM yes $10.94 Buy Options
010 0.239" 3/8" 0.07" 0.239" 0.379" 0.07" 25 B0053UOWNI yes $10.58 Buy Options
011 0.301" 7/16" 0.07" 0.301" 0.441" 0.07" 25 B0053UOYPE yes $14.03 Buy Options
012 0.364" 1/2" 0.07" 0.364" 0.504" 0.07" 25 B0053UP1WE yes $10.73 Buy Options
013 0.426" 9/16" 0.07" 0.426" 0.566" 0.07" 25 B0053UP2Z0 yes $15.05 Buy Options
014 0.489" 5/8" 0.07" 0.489" 0.629" 0.07" 25 B0053UP3RC yes $11.22 Buy Options
015 0.551" 11/16" 0.07" 0.551" 0.691" 0.07" 25 B0053UP5CU yes $11.84 Buy Options
016 0.614" 3/4" 0.07" 0.614" 0.754" 0.07" 10 B0053UP66A yes $7.81 Buy Options
017 0.676" 13/16" 0.07" 0.676" 0.816" 0.07" 10 B0053UP72S yes $7.47 Buy Options
018 0.739" 7/8" 0.07" 0.739" 0.879" 0.07" 10 B0053UP83G yes $9.30 Buy Options
019 0.801" 15/16" 0.07" 0.801" 0.941" 0.07" 10 B0053UP98U yes $9.25 Buy Options

Key Features

  • Made of translucent polyurethane for use with a variety of chemicals and applications
  • Durometer (hardness) of 90A for resistance to penetration
  • Round cross-section to provide a seal between cylindrical overlapping surfaces
  • For use across a wide temperature range from -60 degrees F/-51 degrees C to 212 degrees F/100 degrees C
  • Meets standards defined by Aerospace Standard AS568A

Product Description

This O-ring is made of translucent polyurethane and has a durometer of 90A. It has a round cross-section and can be used across a wide temperature range (-60 degrees F/-51 degrees C to 212 degrees F/100 degrees C). Designed for use in a wide variety of sealing applications, this polyurethane O-ring meet standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.

Polyurethane is resistant to oil, weather, ozone, heat, electricity, abrasion, tearing and many chemicals. It performs well in low temperatures, but is not recommended for continuous use in high temperatures or with super-heated steam.

The durometer hardness of this polyurethane O-ring is 90A. Durometers measure 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, a value of 0 indicates that a sample was completely penetrated, while a value of 100 shows no indentation in the sample. The letter following the number identifies the shore scale, which is either shore A or D. Shore A is used for softer plastics, while shore D is used for harder plastics.

O-rings 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 AS568A dash sizes, which is the standardized sizing for O-rings, and defines the nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter of an O-ring.

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