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: Aerospace Standard 568 Dash Number, 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).
Clear
Filter
Inside Diamter (mm)
Inside Diamter (in)
Cross Section Width (in)
Cross Section Width (mm)
Item # |
Inside Diamter |
Cross Section Width |
Durometer |
Size Reference - AS568 |
Inside Diameter Tolerance +/- |
Cross Section Tolerance +/- |
|---|---|---|---|---|---|---|
| 001S70 | Inside Diamter N/A 0.74 mm0.029 in | Cross Section Width N/A 0.040 in1.02 mm | Durometer N/A 70 | Size Reference - AS568 N/A -001 | Inside Diameter Tolerance +/- N/A 0.004 in0.10 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 002S70 | Inside Diamter N/A 1.07 mm0.042 in | Cross Section Width N/A 0.050 in1.27 mm | Durometer N/A 70 | Size Reference - AS568 N/A -002 | Inside Diameter Tolerance +/- N/A 0.004 in0.10 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 003S70 | Inside Diamter N/A 1.42 mm0.056 in | Cross Section Width N/A 0.060 in1.52 mm | Durometer N/A 70 | Size Reference - AS568 N/A -003 | Inside Diameter Tolerance +/- N/A 0.004 in0.10 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 004S70 | Inside Diamter N/A 1.78 mm0.070 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -004 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 005S70 | Inside Diamter N/A 2.57 mm0.101 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -005 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 006S70 | Inside Diamter N/A 2.90 mm0.114 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -006 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 007S70 | Inside Diamter N/A 3.68 mm0.145 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -007 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 008S70 | Inside Diamter N/A 4.47 mm0.176 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -008 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 009S70 | Inside Diamter N/A 5.28 mm0.208 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -009 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 010S70 | Inside Diamter N/A 6.07 mm0.239 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -010 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 011S70 | Inside Diamter N/A 7.65 mm0.300 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -011 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 012S70 | Inside Diamter N/A 9.25 mm0.364 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -012 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 013S70 | Inside Diamter N/A 10.82 mm0.426 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -013 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 014S70 | Inside Diamter N/A 12.42 mm0.489 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -014 | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 015S70 | Inside Diamter N/A 14.00 mm0.551 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -015 | Inside Diameter Tolerance +/- N/A 0.007 in0.17 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 016S70 | Inside Diamter N/A 15.60 mm0.614 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -016 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 017S70 | Inside Diamter N/A 17.17 mm0.676 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -017 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 018S70 | Inside Diamter N/A 18.77 mm0.739 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -018 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 019S70 | Inside Diamter N/A 20.35 mm0.801 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -019 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 020S70 | Inside Diamter N/A 21.95 mm0.864 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -020 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 021S70 | Inside Diamter N/A 23.52 mm0.926 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -021 | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 022S70 | Inside Diamter N/A 25.12 mm0.989 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -022 | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 023S70 | Inside Diamter N/A 26.70 mm1.051 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -023 | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 024S70 | Inside Diamter N/A 28.30 mm1.114 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -024 | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
| 025S70 | Inside Diamter N/A 29.87 mm1.176 in | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Size Reference - AS568 N/A -025 | Inside Diameter Tolerance +/- N/A 0.011 in0.28 mm | Cross Section Tolerance +/- N/A 0.003 in0.08 mm |
