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 |
---|---|---|---|---|---|---|---|
123.19 X 5.33 B-70 |
IntegrationID
N/A 123553 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 352 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 123.19 mm |
123.19 X 5.33 B-90 |
IntegrationID
N/A 123554 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 352 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 123.19 mm |
123.83 X 5.33 B-70 |
IntegrationID
N/A 123555 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS862 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 123.83 mm |
123.83 X 5.33 B-90 |
IntegrationID
N/A 123556 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS862 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 123.83 mm |
126.37 X 5.33 B-70 |
IntegrationID
N/A 123557 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 353 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 126.37 mm |
126.37 X 5.33 B-90 |
IntegrationID
N/A 123558 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 353 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 126.37 mm |
127x5.33B70 |
IntegrationID
N/A 123559 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS863 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 127.00 mm |
127 X 5.33 B-90 |
IntegrationID
N/A 123560 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS863 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 127.00 mm |
129.54 X 5.33 B-70 |
IntegrationID
N/A 123561 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 354 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 129.54 mm |
129.54 X 5.33 B-90 |
IntegrationID
N/A 123562 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 354 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 129.54 mm |
130.18 X 5.33 B-70 |
IntegrationID
N/A 123563 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS864 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 130.18 mm |
130.18 X 5.33 B-90 |
IntegrationID
N/A 123564 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS864 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 130.18 mm |
132.72 X 5.33 B-70 |
IntegrationID
N/A 123565 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 355 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 132.72 mm |
132.72 X 5.33 B-90 |
IntegrationID
N/A 123566 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 355 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 132.72 mm |
133.35 X 5.33 B-70 |
IntegrationID
N/A 123567 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS865 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 133.35 mm |
133.35 X 5.33 B-90 |
IntegrationID
N/A 123568 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS865 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 133.35 mm |
135.89 X 5.33 B-70 |
IntegrationID
N/A 123569 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 356 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 135.89 mm |
135.89 X 5.33 B-90 |
IntegrationID
N/A 123570 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 356 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 135.89 mm |
136.53 X 5.33 B-70 |
IntegrationID
N/A 123571 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS866 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 136.53 mm |
136.53 X 5.33 B-90 |
IntegrationID
N/A 123572 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS866 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 136.53 mm |
139.07 X 5.33 B-70 |
IntegrationID
N/A 123573 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 357 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 139.07 mm |
139.07 X 5.33 B-90 |
IntegrationID
N/A 123574 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 357 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 139.07 mm |
139.7 X 5.33 B-70 |
IntegrationID
N/A 123575 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS867 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 139.70 mm |
139.7 X 5.33 B-90 |
IntegrationID
N/A 123576 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS867 | Cross Section Width N/A 5.33 mm | Durometer N/A 90 | Inside Diameter N/A 139.70 mm |
142.24 X 5.33 B-70 |
IntegrationID
N/A 123577 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 358 | Cross Section Width N/A 5.33 mm | Durometer N/A 70 | Inside Diameter N/A 142.24 mm |