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 |
Product Guides |
|---|---|---|---|---|---|---|---|---|
| 450 X 7 B-90 |
IntegrationID
N/A 124886 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 450.00 mm | Product Guides N/A Seal Guides |
| 457.2 X 7 B-70 |
IntegrationID
N/A 124887 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 457.20 mm | Product Guides N/A Seal Guides |
| 457.2 X 7 B-90 |
IntegrationID
N/A 124888 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 457.20 mm | Product Guides N/A Seal Guides |
| 462x7.00B70 |
IntegrationID
N/A 124889 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 462.00 mm | Product Guides N/A Seal Guides |
| 462 X 7 B-90 |
IntegrationID
N/A 124890 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 462.00 mm | Product Guides N/A Seal Guides |
| 475x7.00B70 |
IntegrationID
N/A 124891 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 475.00 mm | Product Guides N/A Seal Guides |
| 475 X 7 B-90 |
IntegrationID
N/A 124892 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 475.00 mm | Product Guides N/A Seal Guides |
| 487 X 7 B-70 |
IntegrationID
N/A 124893 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 487.00 mm | Product Guides N/A Seal Guides |
| 487 X 7 B-90 |
IntegrationID
N/A 124894 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 487.00 mm | Product Guides N/A Seal Guides |
| 490 X 7 B-70 |
IntegrationID
N/A 124895 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 490.00 mm | Product Guides N/A Seal Guides |
| 490 X 7 B-90 |
IntegrationID
N/A 124896 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 490.00 mm | Product Guides N/A Seal Guides |
| 494.67 X 7 B-70 |
IntegrationID
N/A 124897 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 494.67 mm | Product Guides N/A Seal Guides |
| 494.67 X 7 B-90 |
IntegrationID
N/A 124898 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 494.67 mm | Product Guides N/A Seal Guides |
| 500 X 7 B-70 |
IntegrationID
N/A 124899 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 500.00 mm | Product Guides N/A Seal Guides |
| 500 X 7 B-90 |
IntegrationID
N/A 124900 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 500.00 mm | Product Guides N/A Seal Guides |
| 515 X 7 B-70 |
IntegrationID
N/A 124901 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 515.00 mm | Product Guides N/A Seal Guides |
| 515 X 7 B-90 |
IntegrationID
N/A 124902 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 515.00 mm | Product Guides N/A Seal Guides |
| 530x7.00B70 |
IntegrationID
N/A 124903 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 530.00 mm | Product Guides N/A Seal Guides |
| 530 X 7 B-90 |
IntegrationID
N/A 124904 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 530.00 mm | Product Guides N/A Seal Guides |
| 545x7.00B70 |
IntegrationID
N/A 124905 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 545.00 mm | Product Guides N/A Seal Guides |
| 545 X 7 B-90 |
IntegrationID
N/A 124906 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 545.00 mm | Product Guides N/A Seal Guides |
| 545.47 X 7 B-70 |
IntegrationID
N/A 124907 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 545.47 mm | Product Guides N/A Seal Guides |
| 545.47 X 7 B-90 |
IntegrationID
N/A 124908 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 545.47 mm | Product Guides N/A Seal Guides |
| 560x7.00B70 |
IntegrationID
N/A 124909 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 70 | Inside Diameter N/A 560.00 mm | Product Guides N/A Seal Guides |
| 560 X 7 B-90 |
IntegrationID
N/A 124910 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 7.00 mm | Durometer N/A 90 | Inside Diameter N/A 560.00 mm | Product Guides N/A Seal Guides |

