O-Rings
Every O-ring manufactured by Seal Tech is built to stringent ASTM, FDA or customer specifications with batch test reports available within 1 year of shipment. We use only the finest raw materials from Dow Chemical, Dupont, Lanxess, Shin-Etsu, Solvay, Wacker, Zeon and other leading suppliers.
Seal Tech stocks over 360 AS568 sizes in nine popular compounds. Our high-volume production equipment and management systems assure the absolute best value to our customers and 100% guaranteed customer satisfaction.
Shop O-Ring Size ChartStandard & Stock O-Ring Compounds
Every O-ring manufactured by Seal Tech is built to stringent ASTM, FDA or customer specifications with batch test reports available within 1 year of shipment. We use only the finest raw materials from Dow Chemical, Dupont, Lanxess, Shin-Etsu, Solvay, Wacker, Zeon and other leading suppliers.
| Compound | Description | Temperature | Duro | Color | FDA* | In Stock |
|---|---|---|---|---|---|---|
| V550-75 | FDA & 3A Sanitary Grade. Dupont-Dow Viton®, with exceptional chemical resistance | -20 to +400F | 75 | Brown | Yes | Yes |
| V510-75 | FKM/Viton, with exceptional chemical resistance | -20 to +400F | 75 | Brown | No | Yes |
| V500-75 | FKM/Viton, with exceptional chemical resistance | -20 to +400F | 75 | Black | No | Yes |
| V560-75 | An FDA Grade FKM/Viton, with exceptional chemical resistance | -20 to +400F | 75 | Black | Yes | Yes |
| S300-70 | FDA Grade Silicone compound for food & medical applications | -80 to +400F | 70 | Red | Yes | Yes |
| N250-70 | An FDA Grade, Nitrile (Buna-N) compound | -40 to +250F | 70 | Black | Yes | Yes |
| N210-90 | A sulfur-cured, Nitrile compound for high pressure | -40 to +250F | 90 | Black | No | Yes |
| N200-70 | A general purpose, sulfur-cured Nitrile (Buna-N) compound | -40 to +250F | 70 | Black | No | Yes |
| E100-70 | FDA Grade EPDM compound for ozone, water & UV service | -65 to +300F | 70 | Black | Yes | Yes |
*FDA per CFR 177.2600
Standard Compound Technical Reports
Metric & Special Size O-Rings
Seal Tech is your convenient source for Metric and Custom O‑rings. In addition to making all 369 standard sizes, we also manufacture hundreds of non-standard sizes, standard metric sizes, including JIS & BS, and custom metric sizes. If Seal Tech does not have a mold for a non-standard size or a particular metric size, we can make one for you in sizes up to 100” ID for use in any application.
