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 |
---|---|---|---|---|---|---|---|
42.5x3.00B70 |
IntegrationID
N/A 118079 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S43 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 42.50 mm |
42.5 X 2 B-90 |
IntegrationID
N/A 118080 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S43 | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 42.50 mm |
43x2.00B70 |
IntegrationID
N/A 118081 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 43.00 mm |
43 X 2 B-90 |
IntegrationID
N/A 118082 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 43.00 mm |
43.5 X 2 B-70 |
IntegrationID
N/A 118083 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S44 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 43.50 mm |
43.5 X 2 B-90 |
IntegrationID
N/A 118084 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S44 | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 43.50 mm |
44x2.00B70 |
IntegrationID
N/A 118085 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 44.00 mm |
44 X 2 B-90 |
IntegrationID
N/A 118086 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 44.00 mm |
44.5x3.00B70 |
IntegrationID
N/A 118087 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S46 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 44.50 mm |
44.5 X 2 B-90 |
IntegrationID
N/A 118088 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S46 | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 44.50 mm |
45x2.00B70 |
IntegrationID
N/A 118089 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 45.00 mm |
45 X 2 B-90 |
IntegrationID
N/A 118090 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 45.00 mm |
45.5 X 2 B-70 |
IntegrationID
N/A 118091 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S46 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 45.50 mm |
45.5 X 2 B-90 |
IntegrationID
N/A 118092 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S46 | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 45.50 mm |
46x2.00B70 |
IntegrationID
N/A 118093 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 46.00 mm |
46 X 2 B-90 |
IntegrationID
N/A 118094 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 46.00 mm |
47x2.00B70 |
IntegrationID
N/A 118095 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 47.00 mm |
47 X 2 B-90 |
IntegrationID
N/A 118096 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 47.00 mm |
47.5 X 2 B-70 |
IntegrationID
N/A 118097 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S48 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 47.50 mm |
47.5 X 2 B-90 |
IntegrationID
N/A 118098 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S48 | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 47.50 mm |
48x2.00B70 |
IntegrationID
N/A 118099 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 48.00 mm |
48 X 2 B-90 |
IntegrationID
N/A 118100 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 48.00 mm |
49x2.00B70 |
IntegrationID
N/A 118101 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 49.00 mm |
49 X 2 B-90 |
IntegrationID
N/A 118102 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 2.00 mm | Durometer N/A 90 | Inside Diameter N/A 49.00 mm |
49.5x3.00B70 |
IntegrationID
N/A 118103 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A S50 | Cross Section Width N/A 2.00 mm | Durometer N/A 70 | Inside Diameter N/A 49.50 mm |