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 |
---|---|---|---|---|---|---|---|
187 X 3.5 B-70 |
IntegrationID
N/A 120343 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 187.00 mm |
187 X 3.5 B-90 |
IntegrationID
N/A 120344 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 187.00 mm |
188x3.50B70 |
IntegrationID
N/A 120345 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 188.00 mm |
188 X 3.5 B-90 |
IntegrationID
N/A 120346 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 188.00 mm |
189 X 3.5 B-70 |
IntegrationID
N/A 120347 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 189.00 mm |
189 X 3.5 B-90 |
IntegrationID
N/A 120348 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 189.00 mm |
190 X 3.5 B-70 |
IntegrationID
N/A 120349 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 190.00 mm |
190 X 3.5 B-90 |
IntegrationID
N/A 120350 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 190.00 mm |
191 X 3.5 B-70 |
IntegrationID
N/A 120351 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 191.00 mm |
191 X 3.5 B-90 |
IntegrationID
N/A 120352 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 191.00 mm |
192x3.50B70 |
IntegrationID
N/A 120353 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 192.00 mm |
192 X 3.5 B-90 |
IntegrationID
N/A 120354 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 192.00 mm |
193x3.50B70 |
IntegrationID
N/A 120355 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 193.00 mm |
193 X 3.5 B-90 |
IntegrationID
N/A 120356 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 193.00 mm |
194x3.50B70 |
IntegrationID
N/A 120357 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 194.00 mm |
194 X 3.5 B-90 |
IntegrationID
N/A 120358 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 194.00 mm |
195x3.50B70 |
IntegrationID
N/A 120359 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 195.00 mm |
195 X 3.5 B-90 |
IntegrationID
N/A 120360 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 195.00 mm |
196 X 3.5 B-70 |
IntegrationID
N/A 120361 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 196.00 mm |
196 X 3.5 B-90 |
IntegrationID
N/A 120362 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 196.00 mm |
197 X 3.5 B-70 |
IntegrationID
N/A 120363 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 197.00 mm |
197 X 3.5 B-90 |
IntegrationID
N/A 120364 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 197.00 mm |
198 X 3.5 B-70 |
IntegrationID
N/A 120365 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 198.00 mm |
198 X 3.5 B-90 |
IntegrationID
N/A 120366 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 90 | Inside Diameter N/A 198.00 mm |
199 X 3.5 B-70 |
IntegrationID
N/A 120367 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.50 mm | Durometer N/A 70 | Inside Diameter N/A 199.00 mm |