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 |
|---|---|---|---|---|---|---|---|---|
| 30.5 X 1 B-90 |
IntegrationID
N/A 117196 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 30.50 mm | Product Guides N/A Seal Guides |
| 31.8 X 1 B-70 |
IntegrationID
N/A 117197 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 70 | Inside Diameter N/A 31.80 mm | Product Guides N/A Seal Guides |
| 31.8 X 1 B-90 |
IntegrationID
N/A 117198 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 31.80 mm | Product Guides N/A Seal Guides |
| 32 X 1 B-70 |
IntegrationID
N/A 117199 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 70 | Inside Diameter N/A 32.00 mm | Product Guides N/A Seal Guides |
| 32 X 1 B-90 |
IntegrationID
N/A 117200 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 32.00 mm | Product Guides N/A Seal Guides |
| 39 X 1 B-70 |
IntegrationID
N/A 117201 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 70 | Inside Diameter N/A 39.00 mm | Product Guides N/A Seal Guides |
| 39 X 1 B-90 |
IntegrationID
N/A 117202 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 39.00 mm | Product Guides N/A Seal Guides |
| 42 X 1 B-70 |
IntegrationID
N/A 117203 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 70 | Inside Diameter N/A 42.00 mm | Product Guides N/A Seal Guides |
| 42 X 1 B-90 |
IntegrationID
N/A 117204 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 42.00 mm | Product Guides N/A Seal Guides |
| 60 X 1 B-70 |
IntegrationID
N/A 117205 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 70 | Inside Diameter N/A 60.00 mm | Product Guides N/A Seal Guides |
| 60 X 1 B-90 |
IntegrationID
N/A 117206 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.00 mm | Durometer N/A 90 | Inside Diameter N/A 60.00 mm | Product Guides N/A Seal Guides |
| 74 X 1.02 B-70 |
IntegrationID
N/A 117207 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 1 | Cross Section Width N/A 1.02 mm | Durometer N/A 70 | Inside Diameter N/A 74.00 mm | Product Guides N/A Seal Guides |
| 74 X 1.02 B-90 |
IntegrationID
N/A 117208 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 1 | Cross Section Width N/A 1.02 mm | Durometer N/A 90 | Inside Diameter N/A 74.00 mm | Product Guides N/A Seal Guides |
| 1.78 X 1.02 B-70 |
IntegrationID
N/A 117209 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS606 | Cross Section Width N/A 1.02 mm | Durometer N/A 70 | Inside Diameter N/A 1.78 mm | Product Guides N/A Seal Guides |
| 1.78 X 1.02 B-90 |
IntegrationID
N/A 117210 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS606 | Cross Section Width N/A 1.02 mm | Durometer N/A 90 | Inside Diameter N/A 1.78 mm | Product Guides N/A Seal Guides |
| 2.54 X 1.02 B-70 |
IntegrationID
N/A 117211 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS607 | Cross Section Width N/A 1.02 mm | Durometer N/A 70 | Inside Diameter N/A 2.54 mm | Product Guides N/A Seal Guides |
| 2.54 X 1.02 B-90 |
IntegrationID
N/A 117212 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS607 | Cross Section Width N/A 1.02 mm | Durometer N/A 90 | Inside Diameter N/A 2.54 mm | Product Guides N/A Seal Guides |
| 42.1 X 1.15 B-70 |
IntegrationID
N/A 117213 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.15 mm | Durometer N/A 70 | Inside Diameter N/A 42.10 mm | Product Guides N/A Seal Guides |
| 42.1 X 1.15 B-90 |
IntegrationID
N/A 117214 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.15 mm | Durometer N/A 90 | Inside Diameter N/A 42.10 mm | Product Guides N/A Seal Guides |
| 4.32 X 1.19 B-70 |
IntegrationID
N/A 117215 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.19 mm | Durometer N/A 70 | Inside Diameter N/A 4.32 mm | Product Guides N/A Seal Guides |
| 4.32 X 1.19 B-90 |
IntegrationID
N/A 117216 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.19 mm | Durometer N/A 90 | Inside Diameter N/A 4.32 mm | Product Guides N/A Seal Guides |
| 2.5 X 1.2 B-70 |
IntegrationID
N/A 117217 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.20 mm | Durometer N/A 70 | Inside Diameter N/A 2.50 mm | Product Guides N/A Seal Guides |
| 2.5 X 1.2 B-90 |
IntegrationID
N/A 117218 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.20 mm | Durometer N/A 90 | Inside Diameter N/A 2.50 mm | Product Guides N/A Seal Guides |
| 2.6 X 1.2 B-70 |
IntegrationID
N/A 117219 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.20 mm | Durometer N/A 70 | Inside Diameter N/A 2.60 mm | Product Guides N/A Seal Guides |
| 2.6 X 1.2 B-90 |
IntegrationID
N/A 117220 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.20 mm | Durometer N/A 90 | Inside Diameter N/A 2.60 mm | Product Guides N/A Seal Guides |
