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 |
|---|---|---|---|---|---|---|---|---|
| 176 X 6 B-90 |
IntegrationID
N/A 124328 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 176.00 mm | Product Guides N/A Seal Guides |
| 180x6.00B70 |
IntegrationID
N/A 124329 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 180.00 mm | Product Guides N/A Seal Guides |
| 180 X 6 B-90 |
IntegrationID
N/A 124330 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 180.00 mm | Product Guides N/A Seal Guides |
| 182 X 6 B-70 |
IntegrationID
N/A 124331 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 182.00 mm | Product Guides N/A Seal Guides |
| 182 X 6 B-90 |
IntegrationID
N/A 124332 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 182.00 mm | Product Guides N/A Seal Guides |
| 184x6.00B70 |
IntegrationID
N/A 124333 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 184.00 mm | Product Guides N/A Seal Guides |
| 184 X 6 B-90 |
IntegrationID
N/A 124334 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 184.00 mm | Product Guides N/A Seal Guides |
| 185x6.00B70 |
IntegrationID
N/A 124335 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 185.00 mm | Product Guides N/A Seal Guides |
| 185 X 6 B-90 |
IntegrationID
N/A 124336 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 185.00 mm | Product Guides N/A Seal Guides |
| 188x6.00B70 |
IntegrationID
N/A 124337 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 188.00 mm | Product Guides N/A Seal Guides |
| 188 X 6 B-90 |
IntegrationID
N/A 124338 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 188.00 mm | Product Guides N/A Seal Guides |
| 190x6.00B70 |
IntegrationID
N/A 124339 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 190.00 mm | Product Guides N/A Seal Guides |
| 190 X 6 B-90 |
IntegrationID
N/A 124340 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 190.00 mm | Product Guides N/A Seal Guides |
| 191.2 X 6 B-70 |
IntegrationID
N/A 124341 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 191.20 mm | Product Guides N/A Seal Guides |
| 191.2 X 6 B-90 |
IntegrationID
N/A 124342 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 191.20 mm | Product Guides N/A Seal Guides |
| 193 X 6 B-70 |
IntegrationID
N/A 124343 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 193.00 mm | Product Guides N/A Seal Guides |
| 193 X 6 B-90 |
IntegrationID
N/A 124344 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 193.00 mm | Product Guides N/A Seal Guides |
| 195x6.00B70 |
IntegrationID
N/A 124345 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 195.00 mm | Product Guides N/A Seal Guides |
| 195 X 6 B-90 |
IntegrationID
N/A 124346 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 195.00 mm | Product Guides N/A Seal Guides |
| 196 X 6 B-70 |
IntegrationID
N/A 124347 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 196.00 mm | Product Guides N/A Seal Guides |
| 196 X 6 B-90 |
IntegrationID
N/A 124348 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 196.00 mm | Product Guides N/A Seal Guides |
| 198x6.00B70 |
IntegrationID
N/A 124349 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 198.00 mm | Product Guides N/A Seal Guides |
| 198 X 6 B-90 |
IntegrationID
N/A 124350 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 198.00 mm | Product Guides N/A Seal Guides |
| 200x6.00B70 |
IntegrationID
N/A 124351 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 70 | Inside Diameter N/A 200.00 mm | Product Guides N/A Seal Guides |
| 200 X 6 B-90 |
IntegrationID
N/A 124352 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 6.00 mm | Durometer N/A 90 | Inside Diameter N/A 200.00 mm | Product Guides N/A Seal Guides |

