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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-907 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.082 in0.082 mm | Durometer N/A 70 | Inside Diameter N/A 0.530 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-906 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.078 in0.078 mm | Durometer N/A 70 | Inside Diameter N/A 0.468 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-905 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.072 in0.072 mm | Durometer N/A 70 | Inside Diameter N/A 0.414 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-904 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.072 in0.072 mm | Durometer N/A 70 | Inside Diameter N/A 0.351 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-903 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.064 in0.064 mm | Durometer N/A 70 | Inside Diameter N/A 0.301 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-902 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.064 in0.064 mm | Durometer N/A 70 | Inside Diameter N/A 0.239 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
-901 Silicone-70 | Type N/A AS568 Standard O-Rings | Material N/A Silicone | Cross Section Width N/A 0.056 in0.056 mm | Durometer N/A 70 | Inside Diameter N/A 0.185 in | Cross Section Tolerance +/- N/A 0.003 inNumeric | Inside Diameter Tolerance +/- N/A 0.005 inNumeric mm | 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, automotive, aerospace and agriculture industries. | |
178S70 |
IntegrationID
N/A 192867 |
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 247.32 mm9.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -178 | 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. |
177S70 |
IntegrationID
N/A 192866 |
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 240.97 mm9.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -177 | 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. |
176S70 |
IntegrationID
N/A 192865 |
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 234.62 mm9.237 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -176 | 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. |
175S70 |
IntegrationID
N/A 192864 |
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 228.27 mm8.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.050 in1.25 mmNumeric mm | Size Reference - AS568 N/A -175 | 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. |
174S70 |
IntegrationID
N/A 192863 |
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 221.92 mm8.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.050 in1.25 mmNumeric mm | Size Reference - AS568 N/A -174 | 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. |
173S70 |
IntegrationID
N/A 192862 |
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 215.57 mm8.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.050 in1.25 mmNumeric mm | Size Reference - AS568 N/A -173 | 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. |
172S70 |
IntegrationID
N/A 192861 |
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 209.22 mm8.237 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.050 in1.25 mmNumeric mm | Size Reference - AS568 N/A -172 | 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. |
171S70 |
IntegrationID
N/A 192860 |
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 202.87 mm7.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mmNumeric mm | Size Reference - AS568 N/A -171 | 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. |
170S70 |
IntegrationID
N/A 192859 |
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 196.52 mm7.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mmNumeric mm | Size Reference - AS568 N/A -170 | 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. |
169S70 |
IntegrationID
N/A 192858 |
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 190.17 mm7.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mmNumeric mm | Size Reference - AS568 N/A -169 | 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. |
168S70 |
IntegrationID
N/A 192857 |
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 183.82 mm7.237 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mmNumeric mm | Size Reference - AS568 N/A -168 | 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. |
167S70 |
IntegrationID
N/A 192856 |
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 177.47 mm6.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.040 in1.02 mmNumeric mm | Size Reference - AS568 N/A -167 | 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. |
166S70 |
IntegrationID
N/A 192855 |
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 171.12 mm6.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.040 in1.02 mmNumeric mm | Size Reference - AS568 N/A -166 | 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. |
165S70 |
IntegrationID
N/A 192854 |
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 164.77 mm6.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.040 in1.02 mmNumeric mm | Size Reference - AS568 N/A -165 | 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. |
164S70 |
IntegrationID
N/A 192853 |
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 158.42 mm6.237 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.040 in1.02 mmNumeric mm | Size Reference - AS568 N/A -164 | 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. |
163S70 |
IntegrationID
N/A 192852 |
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 152.07 mm5.987 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.035 in0.89 mmNumeric mm | Size Reference - AS568 N/A -163 | 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. |
162S70 |
IntegrationID
N/A 192851 |
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 145.72 mm5.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.035 in0.89 mmNumeric mm | Size Reference - AS568 N/A -162 | 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. |
161S70 |
IntegrationID
N/A 192850 |
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 139.37 mm5.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mmNumeric | Inside Diameter Tolerance +/- N/A 0.035 in0.89 mmNumeric mm | Size Reference - AS568 N/A -161 | 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. |