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 |
---|---|---|---|---|---|---|---|
80 X 4.5 B-90 |
IntegrationID
N/A 122424 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 80.00 mm |
81 X 4.5 B-70 |
IntegrationID
N/A 122425 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 81.00 mm |
81 X 4.5 B-90 |
IntegrationID
N/A 122426 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 81.00 mm |
83 X 4.5 B-70 |
IntegrationID
N/A 122427 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 83.00 mm |
83 X 4.5 B-90 |
IntegrationID
N/A 122428 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 83.00 mm |
85 X 4.5 B-70 |
IntegrationID
N/A 122429 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 85.00 mm |
85 X 4.5 B-90 |
IntegrationID
N/A 122430 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 85.00 mm |
89 X 4.5 B-70 |
IntegrationID
N/A 122433 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 89.00 mm |
89 X 4.5 B-90 |
IntegrationID
N/A 122434 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 89.00 mm |
90 X 4.5 B-70 |
IntegrationID
N/A 122435 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 90.00 mm |
90 X 4.5 B-90 |
IntegrationID
N/A 122436 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 90.00 mm |
92 X 4.5 B-70 |
IntegrationID
N/A 122437 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 92.00 mm |
92 X 4.5 B-90 |
IntegrationID
N/A 122438 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 92.00 mm |
93.5 X 4.5 B-70 |
IntegrationID
N/A 122439 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 93.50 mm |
93.5 X 4.5 B-90 |
IntegrationID
N/A 122440 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 93.50 mm |
95 X 4.5 B-70 |
IntegrationID
N/A 122441 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 95.00 mm |
95 X 4.5 B-90 |
IntegrationID
N/A 122442 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 95.00 mm |
97.5 X 4.5 B-70 |
IntegrationID
N/A 122443 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 97.50 mm |
97.5 X 4.5 B-90 |
IntegrationID
N/A 122444 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 97.50 mm |
98 X 4.5 B-70 |
IntegrationID
N/A 122445 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 98.00 mm |
98 X 4.5 B-90 |
IntegrationID
N/A 122446 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 98.00 mm |
99.5 X 4.5 B-70 |
IntegrationID
N/A 122447 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 99.50 mm |
99.5 X 4.5 B-90 |
IntegrationID
N/A 122448 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 99.50 mm |
100 X 4.5 B-70 |
IntegrationID
N/A 122449 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 70 | Inside Diameter N/A 100.00 mm |
100 X 4.5 B-90 |
IntegrationID
N/A 122450 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 4.50 mm | Durometer N/A 90 | Inside Diameter N/A 100.00 mm |