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 |
|---|---|---|---|---|---|---|---|---|
| 2.8x1.90B70 |
IntegrationID
N/A 117873 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P3 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 2.80 mm | Product Guides N/A Seal Guides |
| 2.8 X 1.9 B-90 |
IntegrationID
N/A 117874 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P3 | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 2.80 mm | Product Guides N/A Seal Guides |
| 3.4x1.90B70 |
IntegrationID
N/A 117875 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 3.40 mm | Product Guides N/A Seal Guides |
| 3.4 X 1.9 B-90 |
IntegrationID
N/A 117876 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 3.40 mm | Product Guides N/A Seal Guides |
| 370 X 1.9 B-70 |
IntegrationID
N/A 117877 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 370.00 mm | Product Guides N/A Seal Guides |
| 370 X 1.9 B-90 |
IntegrationID
N/A 117878 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 370.00 mm | Product Guides N/A Seal Guides |
| 3.8x1.90B70 |
IntegrationID
N/A 117879 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P4 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 3.80 mm | Product Guides N/A Seal Guides |
| 3.8 X 1.9 B-90 |
IntegrationID
N/A 117880 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P4 | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 3.80 mm | Product Guides N/A Seal Guides |
| 4.2x1.90B70 |
IntegrationID
N/A 117881 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 4.20 mm | Product Guides N/A Seal Guides |
| 4.2 X 1.9 B-90 |
IntegrationID
N/A 117882 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 4.20 mm | Product Guides N/A Seal Guides |
| 4.8x1.90B70 |
IntegrationID
N/A 117883 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P5 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 4.80 mm | Product Guides N/A Seal Guides |
| 4.8 X 1.9 B-90 |
IntegrationID
N/A 117884 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P5 | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 4.80 mm | Product Guides N/A Seal Guides |
| 4.9 X 1.9 B-70 |
IntegrationID
N/A 117885 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 4.90 mm | Product Guides N/A Seal Guides |
| 4.9 X 1.9 B-90 |
IntegrationID
N/A 117886 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 4.90 mm | Product Guides N/A Seal Guides |
| 570 X 1.9 B-70 |
IntegrationID
N/A 117887 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 570.00 mm | Product Guides N/A Seal Guides |
| 570 X 1.9 B-90 |
IntegrationID
N/A 117888 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 570.00 mm | Product Guides N/A Seal Guides |
| 5.8x1.90B70 |
IntegrationID
N/A 117889 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P6 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 5.80 mm | Product Guides N/A Seal Guides |
| 5.8 X 1.9 B-90 |
IntegrationID
N/A 117890 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P6 | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 5.80 mm | Product Guides N/A Seal Guides |
| 6.4x1.90B70 |
IntegrationID
N/A 117891 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 6.40 mm | Product Guides N/A Seal Guides |
| 6.4 X 1.9 B-90 |
IntegrationID
N/A 117892 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 6.40 mm | Product Guides N/A Seal Guides |
| 6.8x1.90B70 |
IntegrationID
N/A 117893 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P7 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 6.80 mm | Product Guides N/A Seal Guides |
| 6.8 X 1.9 B-90 |
IntegrationID
N/A 117894 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P7 | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 6.80 mm | Product Guides N/A Seal Guides |
| 7.2x1.90B70 |
IntegrationID
N/A 117895 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 7.20 mm | Product Guides N/A Seal Guides |
| 7.2 X 1.9 B-90 |
IntegrationID
N/A 117896 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.90 mm | Durometer N/A 90 | Inside Diameter N/A 7.20 mm | Product Guides N/A Seal Guides |
| 7.8x1.90B70 |
IntegrationID
N/A 117897 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A P8 | Cross Section Width N/A 1.90 mm | Durometer N/A 70 | Inside Diameter N/A 7.80 mm | Product Guides N/A Seal Guides |
