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 |
Product Guides |
Quantity |
---|---|---|---|---|---|---|---|---|---|
253.37 X 6.99 B-90 |
N/A 124736 |
N/A Metric Standard O-Ring | N/A Buna | N/A 4491 | N/A 6.99 mm | N/A 90 | N/A 253.37 mm | N/A Seal Guides | |
259.7 X 6.99 B-70 |
N/A 124737 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS682 | N/A 6.99 mm | N/A 70 | N/A 259.70 mm | N/A Seal Guides | |
259.7 X 6.99 B-90 |
N/A 124738 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS682 | N/A 6.99 mm | N/A 90 | N/A 259.70 mm | N/A Seal Guides | |
266.07 X 6.99 B-70 |
N/A 124739 |
N/A Metric Standard O-Ring | N/A Buna | N/A 450 | N/A 6.99 mm | N/A 70 | N/A 266.07 mm | N/A Seal Guides | |
266.07 X 6.99 B-90 |
N/A 124740 |
N/A Metric Standard O-Ring | N/A Buna | N/A 450 | N/A 6.99 mm | N/A 90 | N/A 266.07 mm | N/A Seal Guides | |
272.4 X 6.99 B-70 |
N/A 124741 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS684 | N/A 6.99 mm | N/A 70 | N/A 272.40 mm | N/A Seal Guides | |
272.4 X 6.99 B-90 |
N/A 124742 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS684 | N/A 6.99 mm | N/A 90 | N/A 272.40 mm | N/A Seal Guides | |
278.77 X 6.99 B-70 |
N/A 124743 |
N/A Metric Standard O-Ring | N/A Buna | N/A 451 | N/A 6.99 mm | N/A 70 | N/A 278.77 mm | N/A Seal Guides | |
278.77 X 6.99 B-90 |
N/A 124744 |
N/A Metric Standard O-Ring | N/A Buna | N/A 451 | N/A 6.99 mm | N/A 90 | N/A 278.77 mm | N/A Seal Guides | |
285.1 X 6.99 B-70 |
N/A 124745 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS686 | N/A 6.99 mm | N/A 70 | N/A 285.10 mm | N/A Seal Guides | |
285.1 X 6.99 B-90 |
N/A 124746 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS686 | N/A 6.99 mm | N/A 90 | N/A 285.10 mm | N/A Seal Guides | |
291.47 X 6.99 B-70 |
N/A 124747 |
N/A Metric Standard O-Ring | N/A Buna | N/A 452 | N/A 6.99 mm | N/A 70 | N/A 291.47 mm | N/A Seal Guides | |
291.47 X 6.99 B-90 |
N/A 124748 |
N/A Metric Standard O-Ring | N/A Buna | N/A 452 | N/A 6.99 mm | N/A 90 | N/A 291.47 mm | N/A Seal Guides | |
297.8 X 6.99 B-70 |
N/A 124749 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS688 | N/A 6.99 mm | N/A 70 | N/A 297.80 mm | N/A Seal Guides | |
297.8 X 6.99 B-90 |
N/A 124750 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS688 | N/A 6.99 mm | N/A 90 | N/A 297.80 mm | N/A Seal Guides | |
304.17 X 6.99 B-70 |
N/A 124751 |
N/A Metric Standard O-Ring | N/A Buna | N/A 453 | N/A 6.99 mm | N/A 70 | N/A 304.17 mm | N/A Seal Guides | |
304.17 X 6.99 B-90 |
N/A 124752 |
N/A Metric Standard O-Ring | N/A Buna | N/A 453 | N/A 6.99 mm | N/A 90 | N/A 304.17 mm | N/A Seal Guides | |
310.5 X 6.99 B-70 |
N/A 124753 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS648 | N/A 6.99 mm | N/A 70 | N/A 310.50 mm | N/A Seal Guides | |
310.5 X 6.99 B-90 |
N/A 124754 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS648 | N/A 6.99 mm | N/A 90 | N/A 310.50 mm | N/A Seal Guides | |
316.87 X 6.99 B-70 |
N/A 124755 |
N/A Metric Standard O-Ring | N/A Buna | N/A 454 | N/A 6.99 mm | N/A 70 | N/A 316.87 mm | N/A Seal Guides | |
316.87 X 6.99 B-90 |
N/A 124756 |
N/A Metric Standard O-Ring | N/A Buna | N/A 454 | N/A 6.99 mm | N/A 90 | N/A 316.87 mm | N/A Seal Guides | |
323.2 X 6.99 B-70 |
N/A 124757 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS649 | N/A 6.99 mm | N/A 70 | N/A 323.20 mm | N/A Seal Guides | |
323.2 X 6.99 B-90 |
N/A 124758 |
N/A Metric Standard O-Ring | N/A Buna | N/A BS649 | N/A 6.99 mm | N/A 90 | N/A 323.20 mm | N/A Seal Guides | |
329.57 X 6.99 B-70 |
N/A 124759 |
N/A Metric Standard O-Ring | N/A Buna | N/A 455 | N/A 6.99 mm | N/A 70 | N/A 329.57 mm | N/A Seal Guides | |
329.57 X 6.99 B-90 |
N/A 124760 |
N/A Metric Standard O-Ring | N/A Buna | N/A 455 | N/A 6.99 mm | N/A 90 | N/A 329.57 mm | N/A Seal Guides |