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 |
---|---|---|---|---|---|---|---|
29.4 X 3.1 B-90 |
IntegrationID
N/A 119866 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G30 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 29.40 mm |
34.4 X 3.1 B-70 |
IntegrationID
N/A 119867 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G35 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 34.40 mm |
34.4 X 3.1 B-90 |
IntegrationID
N/A 119868 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G35 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 34.40 mm |
39.4 X 3.1 B-70 |
IntegrationID
N/A 119869 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G40 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 39.40 mm |
39.4 X 3.1 B-90 |
IntegrationID
N/A 119870 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G40 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 39.40 mm |
44.4 X 3.1 B-70 |
IntegrationID
N/A 119871 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G45 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 44.40 mm |
44.4 X 3.1 B-90 |
IntegrationID
N/A 119872 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G45 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 44.40 mm |
49.4 X 3.1 B-70 |
IntegrationID
N/A 119873 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G50 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 49.40 mm |
49.4 X 3.1 B-90 |
IntegrationID
N/A 119874 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G50 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 49.40 mm |
54.4 X 3.1 B-70 |
IntegrationID
N/A 119875 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G55 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 54.40 mm |
54.4 X 3.1 B-90 |
IntegrationID
N/A 119876 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G55 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 54.40 mm |
59.4 X 3.1 B-70 |
IntegrationID
N/A 119877 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G60 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 59.40 mm |
59.4 X 3.1 B-90 |
IntegrationID
N/A 119878 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G60 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 59.40 mm |
64.4 X 3.1 B-70 |
IntegrationID
N/A 119879 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G65 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 64.40 mm |
64.4 X 3.1 B-90 |
IntegrationID
N/A 119880 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G65 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 64.40 mm |
69.4 X 3.1 B-70 |
IntegrationID
N/A 119881 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G70 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 69.40 mm |
69.4 X 3.1 B-90 |
IntegrationID
N/A 119882 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G70 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 69.40 mm |
74.4 X 3.1 B-70 |
IntegrationID
N/A 119883 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G75 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 74.40 mm |
74.4 X 3.1 B-90 |
IntegrationID
N/A 119884 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G75 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 74.40 mm |
79.4 X 3.1 B-70 |
IntegrationID
N/A 119885 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G80 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 79.40 mm |
79.4 X 3.1 B-90 |
IntegrationID
N/A 119886 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G80 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 79.40 mm |
84.4 X 3.1 B-70 |
IntegrationID
N/A 119887 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G85 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 84.40 mm |
84.4 X 3.1 B-90 |
IntegrationID
N/A 119888 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G85 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 84.40 mm |
89.4 X 3.1 B-70 |
IntegrationID
N/A 119889 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G90 | Cross Section Width N/A 3.10 mm | Durometer N/A 70 | Inside Diameter N/A 89.40 mm |
89.4 X 3.1 B-90 |
IntegrationID
N/A 119890 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A G90 | Cross Section Width N/A 3.10 mm | Durometer N/A 90 | Inside Diameter N/A 89.40 mm |