OneMonroe’s Metric Buna O-Rings are engineered to provide reliable sealing performance across a variety of industrial and commercial applications. Made from high-quality Buna-N (Nitrile) rubber, these O-rings are known for their excellent resistance to oils, fuels, and other petroleum-based products, making them ideal for use in environments where durable, leak-proof seals are essential. Buna-N’s resilient properties allow it to maintain its integrity even in challenging temperatures, ranging from -40°F to 250°F, ensuring these O-rings can withstand both low and high-stress conditions with ease. With a broad range of metric sizes available, OneMonroe ensures you’ll find the right fit for your exact specifications.
Our Metric Buna O-Rings are crafted to offer outstanding resistance to abrasion and tearing, providing long-lasting performance in rigorous applications. This makes them well-suited for automotive, aerospace, marine, and hydraulic systems, as well as in general maintenance and repair settings. The unique chemical composition of Buna-N allows these O-rings to endure pressure and friction over extended periods without compromising their sealing capabilities, making them a reliable choice for static and dynamic sealing tasks. Each O-ring is manufactured to precise industry standards, ensuring a dependable fit and function in every installation.
With OneMonroe, you’re getting more than just a product; you’re receiving a commitment to quality and expertise. Our team is dedicated to supporting your projects with high-quality metric Buna O-Rings that meet both industry standards and specific customer requirements. We provide technical support to help you select the best O-ring for your application, offering detailed product specifications and guidance. Trust OneMonroe to deliver durable, efficient, and cost-effective sealing solutions tailored to meet the demands of your unique projects.
For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Item # |
IntegrationID |
Type |
Material |
Cross Reference |
Cross Section Width |
Durometer |
Inside Diameter |
|---|---|---|---|---|---|---|---|
| 5.28 X 1.78 B-90 |
IntegrationID
N/A 117646 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 9 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 5.28 mm |
| 6.07 X 1.78 B-70 |
IntegrationID
N/A 117647 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 10 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 6.07 mm |
| 6.07 X 1.78 B-90 |
IntegrationID
N/A 117648 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 10 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 6.07 mm |
| 6.35 X 1.78 B-70 |
IntegrationID
N/A 117649 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS803 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 6.35 mm |
| 6.35 X 1.78 B-90 |
IntegrationID
N/A 117650 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS803 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 6.35 mm |
| 6.75 X 1.78 B-70 |
IntegrationID
N/A 117651 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS610 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 6.75 mm |
| 6.75 X 1.78 B-90 |
IntegrationID
N/A 117652 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS610 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 6.75 mm |
| 7.65 X 1.78 B-70 |
IntegrationID
N/A 117653 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 11 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 7.65 mm |
| 7.65 X 1.78 B-90 |
IntegrationID
N/A 117654 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 11 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 7.65 mm |
| 7.94 X 1.78 B-70 |
IntegrationID
N/A 117655 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS804 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 7.94 mm |
| 7.94 X 1.78 B-90 |
IntegrationID
N/A 117656 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS804 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 7.94 mm |
| 8.73 X 1.78 B-70 |
IntegrationID
N/A 117657 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS611 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 8.73 mm |
| 8.73 X 1.78 B-90 |
IntegrationID
N/A 117658 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS611 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 8.73 mm |
| 9.25 X 1.78 B-70 |
IntegrationID
N/A 117659 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 12 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 9.25 mm |
| 9.25 X 1.78 B-90 |
IntegrationID
N/A 117660 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 12 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 9.25 mm |
| 9.52 X 1.78 B-70 |
IntegrationID
N/A 117661 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 9.52 mm |
| 9.52 X 1.78 B-90 |
IntegrationID
N/A 117662 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 9.52 mm |
| 10.82 X 1.78 B-70 |
IntegrationID
N/A 117663 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 13 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 10.82 mm |
| 10.82 X 1.78 B-90 |
IntegrationID
N/A 117664 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 13 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 10.82 mm |
| 11.11 X 1.78 B-70 |
IntegrationID
N/A 117665 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS806 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 11.11 mm |
| 11.11 X 1.78 B-90 |
IntegrationID
N/A 117666 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS806 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 11.11 mm |
| 11.91 X 1.78 B-70 |
IntegrationID
N/A 117667 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 11.91 mm |
| 11.91 X 1.78 B-90 |
IntegrationID
N/A 117668 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 11.91 mm |
| 12.42 X 1.78 B-70 |
IntegrationID
N/A 117669 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 14 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 12.42 mm |
| 12.42 X 1.78 B-90 |
IntegrationID
N/A 117670 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 14 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 12.42 mm |
