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 |
---|---|---|---|---|---|---|---|
49.2 X 3.53 B-90 |
IntegrationID
N/A 120918 |
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 90 | Inside Diameter N/A 49.20 mm |
50.39 X 3.53 B-70 |
IntegrationID
N/A 120919 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 226 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 50.39 mm |
50.39 X 3.53 B-90 |
IntegrationID
N/A 120920 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 226 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 50.39 mm |
50.8x3.53B70 |
IntegrationID
N/A 120921 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS831 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 50.80 mm |
50.8 X 3.53 B-90 |
IntegrationID
N/A 120922 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS831 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 50.80 mm |
52.4x3.53B70 |
IntegrationID
N/A 120923 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS832 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 52.40 mm |
52.4 X 3.53 B-90 |
IntegrationID
N/A 120924 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS832 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 52.40 mm |
53.57 X 3.53 B-70 |
IntegrationID
N/A 120925 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 227 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 53.57 mm |
53.57 X 3.53 B-90 |
IntegrationID
N/A 120926 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 227 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 53.57 mm |
53.97 X 3.53 B-70 |
IntegrationID
N/A 120927 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS833 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 53.97 mm |
53.97 X 3.53 B-90 |
IntegrationID
N/A 120928 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS833 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 53.97 mm |
55.56 X 3.53 B-70 |
IntegrationID
N/A 120929 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS834 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 55.56 mm |
55.56 X 3.53 B-90 |
IntegrationID
N/A 120930 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS834 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 55.56 mm |
56.74 X 3.53 B-70 |
IntegrationID
N/A 120931 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 228 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 56.74 mm |
56.74 X 3.53 B-90 |
IntegrationID
N/A 120932 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 228 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 56.74 mm |
57.15 X 3.53 B-70 |
IntegrationID
N/A 120933 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS835 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 57.15 mm |
57.15 X 3.53 B-90 |
IntegrationID
N/A 120934 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS835 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 57.15 mm |
58.74 X 3.53 B-70 |
IntegrationID
N/A 120935 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS836 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 58.74 mm |
58.74 X 3.53 B-90 |
IntegrationID
N/A 120936 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS836 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 58.74 mm |
59.92 X 3.53 B-70 |
IntegrationID
N/A 120937 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 229 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 59.92 mm |
59.92 X 3.53 B-90 |
IntegrationID
N/A 120938 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 229 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 59.92 mm |
60.32 X 3.53 B-70 |
IntegrationID
N/A 120939 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS837 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 60.32 mm |
60.32 X 3.53 B-90 |
IntegrationID
N/A 120940 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS837 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 60.32 mm |
61.9x3.53B70 |
IntegrationID
N/A 120941 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS838 | Cross Section Width N/A 3.53 mm | Durometer N/A 70 | Inside Diameter N/A 61.90 mm |
61.9 X 3.53 B-90 |
IntegrationID
N/A 120942 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS838 | Cross Section Width N/A 3.53 mm | Durometer N/A 90 | Inside Diameter N/A 61.90 mm |