AS568 Polyurethane O-Rings
Polyurethane O-Rings
Standard O-Rings are available in 369 sizes as set up by the Aerospace Standard 568 published by the Society of Automotive Engineers. These sizes are designated by dash numbers shown on the 568 DASH Chart and are standardized by imperial dimensions. Standard O-Rings are specified by their inside diameter and cross section width. AS568 is the most commonly used standard in the U.S. for aerospace, automotive and general industrial applications.
Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
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Cross Section Width (in)
Cross Section Width (mm)
Durometer
Inside Diameter (mm)
Inside Diameter (in)
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Durometer |
Inside Diameter |
Cross Section Tolerance +/- |
Inside Diameter Tolerance +/- |
Size Reference - AS568 |
Alternate P/N |
Units of Measure |
Tube Size O.D. |
Call for a Quote |
O-Ring Industries |
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-177 U-70 |
IntegrationID
N/A 191121 |
Type N/A | Material N/A | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 240.97 mm9.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -177 | Alternate P/N N/A | Units of Measure N/A | Tube Size O.D. N/A | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
-177 U-90 |
IntegrationID
N/A 191122 |
Type N/A | Material N/A | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 240.97 mm9.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -177 | Alternate P/N N/A | Units of Measure N/A | Tube Size O.D. N/A | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
-178 U-70 |
IntegrationID
N/A 191123 |
Type N/A | Material N/A | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 247.32 mm9.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -178 | Alternate P/N N/A | Units of Measure N/A | Tube Size O.D. N/A | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries.v |
-178 U-90 |
IntegrationID
N/A 191124 |
Type N/A | Material N/A | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 247.32 mm9.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -178 | Alternate P/N N/A | Units of Measure N/A | Tube Size O.D. N/A | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |
-901 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.056 in | Durometer N/A 70 | Inside Diameter N/A 0.185 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -901 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/32 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-902 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.064 in | Durometer N/A 70 | Inside Diameter N/A 0.239 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -902 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-903 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.064 in | Durometer N/A 70 | Inside Diameter N/A 0.301 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -903 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-904 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.072 in | Durometer N/A 70 | Inside Diameter N/A 0.351 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -904 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/4 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-905 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.072 in | Durometer N/A 70 | Inside Diameter N/A 0.414 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -905 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 5/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-906 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.078 in | Durometer N/A 70 | Inside Diameter N/A 0.468 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -906 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-907 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.082 in | Durometer N/A 70 | Inside Diameter N/A 0.530 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -907 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 7/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-908 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.087 in | Durometer N/A 70 | Inside Diameter N/A 0.644 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -908 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/2 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-909 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.097 in | Durometer N/A 70 | Inside Diameter N/A 0.706 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -909 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 9/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries.v | |
-910 Polyurethane-70 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.097 in | Durometer N/A 70 | Inside Diameter N/A 0.755 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -910 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 5/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-901 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.056 in | Durometer N/A 75 | Inside Diameter N/A 0.185 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -901 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/32 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-902 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.064 in | Durometer N/A 75 | Inside Diameter N/A 0.239 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -902 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-903 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.064 in | Durometer N/A 75 | Inside Diameter N/A 0.301 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -903 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries.v | |
-904 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.072 in | Durometer N/A 75 | Inside Diameter N/A 0.351 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -904 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/4 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-905 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.072 in | Durometer N/A 75 | Inside Diameter N/A 0.414 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -905 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 5/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-906 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.078 in | Durometer N/A 75 | Inside Diameter N/A 0.468 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -906 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-907 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.082 in | Durometer N/A 75 | Inside Diameter N/A 0.530 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -907 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 7/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-908 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.087 in | Durometer N/A 75 | Inside Diameter N/A 0.644 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -908 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 1/2 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-909 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.097 in | Durometer N/A 75 | Inside Diameter N/A 0.706 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -909 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 9/16 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-910 Polyurethane-75 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.097 in | Durometer N/A 75 | Inside Diameter N/A 0.755 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.009 in | Size Reference - AS568 N/A -910 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 5/8 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. | |
-901 Polyurethane-90 | Type N/A AS568 Standard O-Rings | Material N/A Polyurethane | Cross Section Width N/A 0.056 in | Durometer N/A 90 | Inside Diameter N/A 0.185 in | Cross Section Tolerance +/- N/A 0.003 in | Inside Diameter Tolerance +/- N/A 0.005 in | Size Reference - AS568 N/A -901 | Alternate P/N N/A | Units of Measure N/A Imperial | Tube Size O.D. N/A 3/32 | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military defense and agriculture industries. |