The 13 ISO 6149 O-ring sizes for metric tube-fitting and hydraulic port connections, each matched to its metric thread so you can specify the right seal for the port. ARC molds these O-rings to spec in the compound your application demands.
Request a Quote O-Ring Products →ISO 6149 defines the metric-thread port and stud-end connections used across hydraulic systems and metric tube fittings, and this chart lists the 13 thread-matched O-ring sizes so you can pair the right seal to each port. Engineers and buyers searching for ISO 6149 O-ring sizes, metric port seal dimensions, or hydraulic port O-rings by metric thread use it to read the inside diameter and cross-section that seat in the port's counterbore, confirm the seal against the thread size, and spec the part before releasing a drawing or requesting a quote — heading off leak paths at the port face.
ARC molds these ISO 6149 O-rings to spec in the compound your system demands — NBR, HNBR, FKM/Viton, EPDM and more — matched to the temperature, hydraulic fluid and pressure you're sealing. As a US custom rubber manufacturer with 20 years of experience and ISO 9001:2015 and IATF 16949:2016 quality systems, we take your port size, thread or drawing and come back fast with the confirmed material, tooling path and a production quote.
| Global Part# | Reference | I.D. (MM) | C/S (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.60X006.1 | M8 X 1 | 1.6 | 6.1 | 0.063 | 0.24 |
| 1.60X008.1 | M10 X 1 | 1.6 | 8.1 | 0.063 | 0.319 |
| 2.20X009.3 | M12 X 1.5 | 2.2 | 9.3 | 0.087 | 0.366 |
| 2.20X011.3 | M14 X 1.5 | 2.2 | 11.3 | 0.087 | 0.445 |
| 2.20X013.3 | M16 X 1.5 | 2.2 | 13.3 | 0.087 | 0.524 |
| 2.20X015.3 | M18 X 1.5 | 2.2 | 15.3 | 0.087 | 0.602 |
| 2.20X017.3 | M20 X 1.5 | 2.2 | 17.3 | 0.087 | 0.681 |
| 2.20X019.3 | M22 X 1.5 | 2.2 | 19.3 | 0.087 | 0.76 |
| 2.90X023.6 | M27 X 2 | 2.9 | 23.6 | 0.114 | 0.929 |
| 2.90X029.6 | M33 X 2 | 2.9 | 29.6 | 0.114 | 1.165 |
| 2.90X038.6 | M42 X 2 | 2.9 | 38.6 | 0.114 | 1.52 |
| 2.90X044.6 | M48 X 2 | 2.9 | 44.6 | 0.114 | 1.756 |
| 2.90X056.6 | M60 X 2 | 2.9 | 56.6 | 0.114 | 2.228 |
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Send your port size, thread or drawing and our engineers confirm the material, tooling and a path to production.
