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 |
---|---|---|---|---|---|---|---|
32.5 X 3.6 B-70 |
IntegrationID
N/A 121245 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 32.50 mm |
32.5 X 3.6 B-90 |
IntegrationID
N/A 121246 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 32.50 mm |
34.1 X 3.6 B-70 |
IntegrationID
N/A 121247 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 34.10 mm |
34.1 X 3.6 B-90 |
IntegrationID
N/A 121248 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 34.10 mm |
35.6 X 3.6 B-70 |
IntegrationID
N/A 121249 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 35.60 mm |
35.6 X 3.6 B-90 |
IntegrationID
N/A 121250 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 35.60 mm |
37.3 X 3.6 B-70 |
IntegrationID
N/A 121251 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 37.30 mm |
37.3 X 3.6 B-90 |
IntegrationID
N/A 121252 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 37.30 mm |
43.4 X 3.6 B-70 |
IntegrationID
N/A 121253 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 43.40 mm |
43.4 X 3.6 B-90 |
IntegrationID
N/A 121254 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 43.40 mm |
4 X 3.6 B-70 |
IntegrationID
N/A 121255 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 70 | Inside Diameter N/A 4.00 mm |
4 X 3.6 B-90 |
IntegrationID
N/A 121256 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.60 mm | Durometer N/A 90 | Inside Diameter N/A 4.00 mm |
5x4.00B70 |
IntegrationID
N/A 121257 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 5.00 mm |
5 X 4 B-90 |
IntegrationID
N/A 121258 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 5.00 mm |
6x4.00B70 |
IntegrationID
N/A 121259 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 6.00 mm |
6 X 4 B-90 |
IntegrationID
N/A 121260 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 6.00 mm |
7x4.00B70 |
IntegrationID
N/A 121261 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 7.00 mm |
7 X 4 B-90 |
IntegrationID
N/A 121262 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 7.00 mm |
7.6 X 4 B-70 |
IntegrationID
N/A 121263 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 7.60 mm |
7.6 X 4 B-90 |
IntegrationID
N/A 121264 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 7.60 mm |
8x4.00B70 |
IntegrationID
N/A 121265 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 8.00 mm |
8 X 4 B-90 |
IntegrationID
N/A 121266 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 8.00 mm |
9x4.00B70 |
IntegrationID
N/A 121267 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 9.00 mm |
9 X 4 B-90 |
IntegrationID
N/A 121268 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 90 | Inside Diameter N/A 9.00 mm |
10x4.00B70 |
IntegrationID
N/A 121269 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.00 mm | Durometer N/A 70 | Inside Diameter N/A 10.00 mm |