At North Coast Seal, we make ordering large O-rings fast, easy, and cost-effective. To get started, select a cross section from our available sizes—ranging from 2.62 mm to 40 mm. Then determine the inside diameter needed for your application. With no tooling charges, no minimum order quantities, and fully custom diameters, our production process is built for flexibility and efficiency. Our advanced compression molding technology delivers seamless, joint-free large O-rings, manufactured to your exact specifications with quick turnaround and competitive pricing.
Are you ready to size your O-rings? Choose from the available cross section sizes listed below and calculate the diameter* for your application. North Coast Seal will produce your O-rings according to your precise specifications. Please note that all cross section sizes are in millimeters.
| 2.62 | 8.00 | 16.00 |
| 3.00 | 8.40 | 17.00 |
| 3.53 | 8.50 | 18.00 |
| 4.00 | 9.00 | 19.00 |
| 4.50 | 9.50 | 20.00 |
| 5.00 | 10.00 | 22.00 |
| 5.33 | 10.82 | 24.00 |
| 5.50 | 11.00 | 25.00 |
| 5.70 | 12.00 | 26.00 |
| 6.00 | 12.70 | 28.00 |
| 6.35 | 13.00 | 30.00 |
| 6.50 | 14.00 | 40.00 |
| 7.00 | 14.40 | - |
| 7.50 | 15.00 | - |
*Our minimum inside diameter is 200 mm. The thinnest cross section we make is 2.62 mm.
"*" indicates required fields
