AS568 Silicone O-Rings
Standard O-Rings (AS568)
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. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C).
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C).
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Cross Section Width (in)
Cross Section Width (mm)
Cross Section Width (mm)
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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127S70 127S70/Asset/oring71.jpg |
IntegrationID
N/A 192816 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 36.17 mm1.424 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mmNumeric mm | Size Reference - AS568 N/A -127 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
128S70 128S70/Asset/oring71.jpg |
IntegrationID
N/A 192817 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 37.77 mm1.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mmNumeric mm | Size Reference - AS568 N/A -128 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
129S70 129S70/Asset/oring71.jpg |
IntegrationID
N/A 192818 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 39.34 mm1.549 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -129 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
130S70 130S70/Asset/oring71.jpg |
IntegrationID
N/A 192819 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 40.94 mm1.612 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -130 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
131S70 131S70/Asset/oring71.jpg |
IntegrationID
N/A 192820 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 42.52 mm1.674 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -131 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
132S70 132S70/Asset/oring71.jpg |
IntegrationID
N/A 192821 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 44.12 mm1.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -132 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
133S70 133S70/Asset/oring71.jpg |
IntegrationID
N/A 192822 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 45.69 mm1.799 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -133 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
134S70 134S70/Asset/oring71.jpg |
IntegrationID
N/A 192823 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 47.29 mm1.862 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -134 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
135S70 135S70/Asset/oring71.jpg |
IntegrationID
N/A 192824 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 48.90 mm1.925 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -135 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
136S70 136S70/Asset/oring71.jpg |
IntegrationID
N/A 192825 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 50.47 mm1.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -136 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
137S70 137S70/Asset/oring71.jpg |
IntegrationID
N/A 192826 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 52.07 mm2.050 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -137 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
138S70 138S70/Asset/oring71.jpg |
IntegrationID
N/A 192827 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 53.64 mm2.112 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -138 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
139S70 139S70/Asset/oring71.jpg |
IntegrationID
N/A 192828 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 55.25 mm2.175 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -139 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
140S70 140S70/Asset/oring71.jpg |
IntegrationID
N/A 192829 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 56.82 mm2.237 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.017 in0.43 mmNumeric mm | Size Reference - AS568 N/A -140 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
141S70 141S70/Asset/oring71.jpg |
IntegrationID
N/A 192830 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 58.42 mm2.300 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -141 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
142S70 142S70/Asset/oring71.jpg |
IntegrationID
N/A 192831 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 59.99 mm2.362 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -142 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
143S70 143S70/Asset/oring71.jpg |
IntegrationID
N/A 192832 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 61.60 mm2.425 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -143 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
144S70 144S70/Asset/oring71.jpg |
IntegrationID
N/A 192833 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 63.17 mm2.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -144 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
145S70 145S70/Asset/oring71.jpg |
IntegrationID
N/A 192834 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 64.77 mm2.550 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -145 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
146S70 146S70/Asset/oring71.jpg |
IntegrationID
N/A 192835 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 66.34 mm2.612 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.020 in0.50 mmNumeric mm | Size Reference - AS568 N/A -146 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
147S70 147S70/Asset/oring71.jpg |
IntegrationID
N/A 192836 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 67.95 mm2.675 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.022 in0.55 mmNumeric mm | Size Reference - AS568 N/A -147 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
148S70 148S70/Asset/oring71.jpg |
IntegrationID
N/A 192837 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 69.52 mm2.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.022 in0.55 mmNumeric mm | Size Reference - AS568 N/A -148 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
149S70 149S70/Asset/oring71.jpg |
IntegrationID
N/A 192838 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 71.12 mm2.800 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.022 in0.55 mmNumeric mm | Size Reference - AS568 N/A -149 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
150S70 150S70/Asset/oring71.jpg |
IntegrationID
N/A 192839 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 72.69 mm2.862 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.022 in0.55 mmNumeric mm | Size Reference - AS568 N/A -150 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |
151S70 151S70/Asset/oring71.jpg |
IntegrationID
N/A 192840 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.103 in2.62 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 75.87 mm2.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.024 in0.61 mmNumeric mm | Size Reference - AS568 N/A -151 | Alternate P/N N/A | Units of Measure N/A Long Text | Tube Size O.D. N/A Numeric | Call for a Quote N/A | O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries. |