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 |
---|---|---|---|---|---|---|---|
234.54 X 3.53 B-70 |
IntegrationID
N/A 121045 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 271 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 234.54 mm |
234.54 X 3.53 B-90 |
IntegrationID
N/A 121046 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 271 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 234.54 mm |
240.89 X 3.53 B-70 |
IntegrationID
N/A 121047 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 272 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 240.89 mm |
240.89 X 3.53 B-90 |
IntegrationID
N/A 121048 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 272 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 240.89 mm |
247.24 X 3.53 B-70 |
IntegrationID
N/A 121049 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 273 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 247.24 mm |
247.24 X 3.53 B-90 |
IntegrationID
N/A 121050 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 273 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 247.24 mm |
253.59 X 3.53 B-70 |
IntegrationID
N/A 121051 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 274 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 253.59 mm |
253.59 X 3.53 B-90 |
IntegrationID
N/A 121052 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 274 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 253.59 mm |
266.29 X 3.53 B-70 |
IntegrationID
N/A 121053 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 275 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 266.29 mm |
266.29 X 3.53 B-90 |
IntegrationID
N/A 121054 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 275 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 266.29 mm |
278.99 X 3.53 B-70 |
IntegrationID
N/A 121055 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 276 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 278.99 mm |
278.99 X 3.53 B-90 |
IntegrationID
N/A 121056 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 276 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 278.99 mm |
291.69 X 3.53 B-70 |
IntegrationID
N/A 121057 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 277 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 291.69 mm |
291.69 X 3.53 B-90 |
IntegrationID
N/A 121058 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 277 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 291.69 mm |
304.39 X 3.53 B-70 |
IntegrationID
N/A 121059 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 278 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 304.39 mm |
304.39 X 3.53 B-90 |
IntegrationID
N/A 121060 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 278 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 304.39 mm |
319.2 X 3.53 B-70 |
IntegrationID
N/A 121061 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 319.20 mm |
319.2 X 3.53 B-90 |
IntegrationID
N/A 121062 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 319.20 mm |
329.79 X 3.53 B-70 |
IntegrationID
N/A 121063 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 279 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 329.79 mm |
329.79 X 3.53 B-90 |
IntegrationID
N/A 121064 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 279 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 329.79 mm |
355.19 X 3.53 B-70 |
IntegrationID
N/A 121065 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 280 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 355.19 mm |
355.19 X 3.53 B-90 |
IntegrationID
N/A 121066 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 280 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 355.19 mm |
380.59 X 3.53 B-70 |
IntegrationID
N/A 121067 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 281 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 380.59 mm |
380.59 X 3.53 B-90 |
IntegrationID
N/A 121068 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 281 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 380.59 mm |
405.26 X 3.53 B-70 |
IntegrationID
N/A 121069 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 282 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 405.26 mm |