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 |
---|---|---|---|---|---|---|---|
36.09 X 3.53 B-70 |
IntegrationID
N/A 120893 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 221 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 36.09 mm |
36.09 X 3.53 B-90 |
IntegrationID
N/A 120894 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 221 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 36.09 mm |
37.69 X 3.53 B-70 |
IntegrationID
N/A 120895 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 222 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 37.69 mm |
37.69 X 3.53 B-90 |
IntegrationID
N/A 120896 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 222 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 37.69 mm |
39.7x3.53B70 |
IntegrationID
N/A 120897 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS824 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 39.70 mm |
39.7 X 3.53 B-90 |
IntegrationID
N/A 120898 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS824 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 39.70 mm |
40.87 X 3.53 B-70 |
IntegrationID
N/A 120899 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 223 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 40.87 mm |
40.87 X 3.53 B-90 |
IntegrationID
N/A 120900 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 223 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 40.87 mm |
41.26 X 3.53 B-70 |
IntegrationID
N/A 120901 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BSW825 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 41.26 mm |
41.26 X 3.53 B-90 |
IntegrationID
N/A 120902 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BSW825 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 41.26 mm |
41.28 X 3.53 B-70 |
IntegrationID
N/A 120903 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS825 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 41.28 mm |
41.28 X 3.53 B-90 |
IntegrationID
N/A 120904 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS825 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 41.28 mm |
42.86 X 3.53 B-70 |
IntegrationID
N/A 120905 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS826 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 42.86 mm |
42.86 X 3.53 B-90 |
IntegrationID
N/A 120906 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS826 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 42.86 mm |
44.04 X 3.53 B-70 |
IntegrationID
N/A 120907 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 224 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 44.04 mm |
44.04 X 3.53 B-90 |
IntegrationID
N/A 120908 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 224 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 44.04 mm |
44.45 X 3.53 B-70 |
IntegrationID
N/A 120909 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS827 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 44.45 mm |
44.45 X 3.53 B-90 |
IntegrationID
N/A 120910 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS827 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 44.45 mm |
46.04 X 3.53 B-70 |
IntegrationID
N/A 120911 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS828 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 46.04 mm |
46.04 X 3.53 B-90 |
IntegrationID
N/A 120912 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS828 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 46.04 mm |
47.22 X 3.53 B-70 |
IntegrationID
N/A 120913 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 225 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 47.22 mm |
47.22 X 3.53 B-90 |
IntegrationID
N/A 120914 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 225 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 47.22 mm |
47.62 X 3.53 B-70 |
IntegrationID
N/A 120915 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS829 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 47.62 mm |
47.62 X 3.53 B-90 |
IntegrationID
N/A 120916 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS829 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 47.62 mm |
49.2x3.53B70 |
IntegrationID
N/A 120917 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS830 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 49.20 mm |