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 |
---|---|---|---|---|---|---|---|
43.7 X 3.55 B-90 |
IntegrationID
N/A 121120 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 43.70 mm |
45 X 3.55 B-70 |
IntegrationID
N/A 121121 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 45.00 mm |
45 X 3.55 B-90 |
IntegrationID
N/A 121122 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 45.00 mm |
46.2x3.55B70 |
IntegrationID
N/A 121123 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 46.20 mm |
46.2 X 3.55 B-90 |
IntegrationID
N/A 121124 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 46.20 mm |
47.5x3.55B70 |
IntegrationID
N/A 121125 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 47.50 mm |
47.5 X 3.55 B-90 |
IntegrationID
N/A 121126 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 47.50 mm |
48.7 X 3.55 B-70 |
IntegrationID
N/A 121127 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 48.70 mm |
48.7 X 3.55 B-90 |
IntegrationID
N/A 121128 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 48.70 mm |
50x3.55B70 |
IntegrationID
N/A 121129 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 50.00 mm |
50 X 3.55 B-90 |
IntegrationID
N/A 121130 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 50.00 mm |
51.5 X 3.55 B-70 |
IntegrationID
N/A 121131 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 51.50 mm |
51.5 X 3.55 B-90 |
IntegrationID
N/A 121132 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 51.50 mm |
53x3.55B70 |
IntegrationID
N/A 121133 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 53.00 mm |
53 X 3.55 B-90 |
IntegrationID
N/A 121134 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 53.00 mm |
54.5x3.55B70 |
IntegrationID
N/A 121135 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 54.50 mm |
54.5 X 3.55 B-90 |
IntegrationID
N/A 121136 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 54.50 mm |
56x3.55B70 |
IntegrationID
N/A 121137 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 56.00 mm |
56 X 3.55 B-90 |
IntegrationID
N/A 121138 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 56.00 mm |
58 X 3.55 B-70 |
IntegrationID
N/A 121139 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 58.00 mm |
58 X 3.55 B-90 |
IntegrationID
N/A 121140 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 58.00 mm |
60x3.55B70 |
IntegrationID
N/A 121141 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 60.00 mm |
60 X 3.55 B-90 |
IntegrationID
N/A 121142 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 60.00 mm |
61.5 X 3.55 B-70 |
IntegrationID
N/A 121143 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 70 | Inside Diameter N/A 61.50 mm |
61.5 X 3.55 B-90 |
IntegrationID
N/A 121144 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 3.55 mm | Durometer N/A 90 | Inside Diameter N/A 61.50 mm |