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 |
---|---|---|---|---|---|---|---|
88.62 X 1.78 B-90 |
IntegrationID
N/A 117746 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 43 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 88.62 mm |
91.7 X 1.78 B-70 |
IntegrationID
N/A 117747 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS536 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 91.70 mm |
91.7 X 1.78 B-90 |
IntegrationID
N/A 117748 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS536 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 91.70 mm |
94.97 X 1.78 B-70 |
IntegrationID
N/A 117749 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 44 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 94.97 mm |
94.97 X 1.78 B-90 |
IntegrationID
N/A 117750 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 44 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 94.97 mm |
98.05 X 1.78 B-70 |
IntegrationID
N/A 117751 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS538 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 98.05 mm |
98.05 X 1.78 B-90 |
IntegrationID
N/A 117752 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS538 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 98.05 mm |
101.32 X 1.78 B-70 |
IntegrationID
N/A 117753 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 45 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 101.32 mm |
101.32 X 1.78 B-90 |
IntegrationID
N/A 117754 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 45 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 101.32 mm |
104.4 X 1.78 B-70 |
IntegrationID
N/A 117755 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS540 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 104.40 mm |
104.4 X 1.78 B-90 |
IntegrationID
N/A 117756 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS540 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 104.40 mm |
107.67 X 1.78 B-70 |
IntegrationID
N/A 117757 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 46 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 107.67 mm |
107.67 X 1.78 B-90 |
IntegrationID
N/A 117758 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 46 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 107.67 mm |
110.74 X 1.78 B-70 |
IntegrationID
N/A 117759 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS542 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 110.74 mm |
110.74 X 1.78 B-90 |
IntegrationID
N/A 117760 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS542 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 110.74 mm |
114.02 X 1.78 B-70 |
IntegrationID
N/A 117761 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 47 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 114.02 mm |
114.02 X 1.78 B-90 |
IntegrationID
N/A 117762 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 47 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 114.02 mm |
117.1 X 1.78 B-70 |
IntegrationID
N/A 117763 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS544 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 117.10 mm |
117.1 X 1.78 B-90 |
IntegrationID
N/A 117764 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS544 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 117.10 mm |
120.37 X 1.78 B-70 |
IntegrationID
N/A 117765 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 48 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 120.37 mm |
120.37 X 1.78 B-90 |
IntegrationID
N/A 117766 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 48 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 120.37 mm |
123.44 X 1.78 B-70 |
IntegrationID
N/A 117767 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS546 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 123.44 mm |
123.44 X 1.78 B-90 |
IntegrationID
N/A 117768 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A BS546 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 123.44 mm |
126.72 X 1.78 B-70 |
IntegrationID
N/A 117769 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 49 | Cross Section Width N/A 1.78 mm | Durometer N/A 70 | Inside Diameter N/A 126.72 mm |
126.72 X 1.78 B-90 |
IntegrationID
N/A 117770 |
Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 49 | Cross Section Width N/A 1.78 mm | Durometer N/A 90 | Inside Diameter N/A 126.72 mm |