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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 373S70 373S70/Asset/oring71.jpg |
IntegrationID
N/A 193016 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 227.97 mm8.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.050 in1.30 mmNumeric mm | Size Reference - AS568 N/A -373 | 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. |
| 374S70 374S70/Asset/oring71.jpg |
IntegrationID
N/A 193017 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 234.32 mm9.225 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -374 | 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. |
| 375S70 375S70/Asset/oring71.jpg |
IntegrationID
N/A 193018 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 240.67 mm9.475 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -375 | 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. |
| 376S70 376S70/Asset/oring71.jpg |
IntegrationID
N/A 193019 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 247.02 mm9.725 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -376 | 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. |
| 377S70 377S70/Asset/oring71.jpg |
IntegrationID
N/A 193020 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 253.37 mm9.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mmNumeric mm | Size Reference - AS568 N/A -377 | 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. |
| 378S70 378S70/Asset/oring71.jpg |
IntegrationID
N/A 193021 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 266.07 mm10.475 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.060 in1.52 mmNumeric mm | Size Reference - AS568 N/A -378 | 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. |
| 379S70 379S70/Asset/oring71.jpg |
IntegrationID
N/A 193022 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 278.77 mm10.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.060 in1.52 mmNumeric mm | Size Reference - AS568 N/A -379 | 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. |
| 380S70 380S70/Asset/oring71.jpg |
IntegrationID
N/A 193023 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 291.47 mm11.475 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mmNumeric mm | Size Reference - AS568 N/A -380 | 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. |
| 381S70 381S70/Asset/oring71.jpg |
IntegrationID
N/A 193024 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 304.17 mm11.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mmNumeric mm | Size Reference - AS568 N/A -381 | 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. |
| 382S70 382S70/Asset/oring71.jpg |
IntegrationID
N/A 193025 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.34 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 329.55 mm12.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mmNumeric mm | Size Reference - AS568 N/A -382 | 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. |
| 383S70 383S70/Asset/oring71.jpg |
IntegrationID
N/A 193026 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 354.97 mm13.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.070 in1.78 mmNumeric mm | Size Reference - AS568 N/A -383 | 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. |
| 384S70 384S70/Asset/oring71.jpg |
IntegrationID
N/A 193027 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 380.37 mm14.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.070 in1.78 mmNumeric mm | Size Reference - AS568 N/A -384 | 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. |
| 385S70 385S70/Asset/oring71.jpg |
IntegrationID
N/A 193028 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 405.26 mm15.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.075 in1.90 mmNumeric mm | Size Reference - AS568 N/A -385 | 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. |
| 386S70 386S70/Asset/oring71.jpg |
IntegrationID
N/A 193029 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 430.66 mm16.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.080 in2.05 mmNumeric mm | Size Reference - AS568 N/A -386 | 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. |
| 387S70 387S70/Asset/oring71.jpg |
IntegrationID
N/A 193030 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 456.06 mm17.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.085 in2.15 mmNumeric mm | Size Reference - AS568 N/A -387 | 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. |
| 388S70 388S70/Asset/oring71.jpg |
IntegrationID
N/A 193031 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 481.46 mm18.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.090 in2.25 mmNumeric mm | Size Reference - AS568 N/A -388 | 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. |
| 389S70 389S70/Asset/oring71.jpg |
IntegrationID
N/A 193032 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 506.86 mm19.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.095 in2.25 mmNumeric mm | Size Reference - AS568 N/A -389 | 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. |
| 390S70 390S70/Asset/oring71.jpg |
IntegrationID
N/A 193033 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 532.26 mm20.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.095 in2.25 mmNumeric mm | Size Reference - AS568 N/A -390 | 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. |
| 391S70 391S70/Asset/oring71.jpg |
IntegrationID
N/A 193034 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 557.66 mm21.955 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.100 in2.55 mmNumeric mm | Size Reference - AS568 N/A -391 | 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. |
| 392S70 392S70/Asset/oring71.jpg |
IntegrationID
N/A 193035 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 582.65 mm22.940 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.105 in2.65 mmNumeric mm | Size Reference - AS568 N/A -392 | 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. |
| 393S70 393S70/Asset/oring71.jpg |
IntegrationID
N/A 193036 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 608.10 mm23.940 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.110 in2.80 mmNumeric mm | Size Reference - AS568 N/A -393 | 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. |
| 394S70 394S70/Asset/oring71.jpg |
IntegrationID
N/A 193037 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 633.50 mm24.940 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.115 in2.90 mmNumeric mm | Size Reference - AS568 N/A -394 | 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. |
| 395S70 395S70/Asset/oring71.jpg |
IntegrationID
N/A 193038 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.210 in5.33 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 658.88 mm25.940 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mmNumeric | Inside Diameter Tolerance +/- N/A 0.012 in3.05 mmNumeric mm | Size Reference - AS568 N/A -395 | 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. |
| -400 S-70 -400 S-70/Asset/oring71.jpg |
IntegrationID
N/A 193039 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.275 in6.99 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 34.29 mm1.350 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -400 | 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. |
| -401 S-70 -401 S-70/Asset/oring71.jpg |
IntegrationID
N/A 193040 |
Type N/A Long Text | Material N/A Long Text | Cross Section Width N/A 0.275 in6.99 mmNumeric mm | Durometer N/A 70 | Inside Diameter N/A 37.47 mm1.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mmNumeric | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mmNumeric mm | Size Reference - AS568 N/A -401 | 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. |
