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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.

Metric O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Reference

Cross Section Width

Durometer

Inside Diameter

Product Guides

Quantity
335.9 X 6.99 B-70 N/A
124761
N/A Metric Standard O-Ring N/A Buna N/A BS650 N/A 6.99 mm N/A 70 N/A 335.90 mm N/A Seal Guides
335.9 X 6.99 B-90 N/A
124762
N/A Metric Standard O-Ring N/A Buna N/A BS650 N/A 6.99 mm N/A 90 N/A 335.90 mm N/A Seal Guides
342.27 X 6.99 B-70 N/A
124763
N/A Metric Standard O-Ring N/A Buna N/A 456 N/A 6.99 mm N/A 70 N/A 342.27 mm N/A Seal Guides
342.27 X 6.99 B-90 N/A
124764
N/A Metric Standard O-Ring N/A Buna N/A 456 N/A 6.99 mm N/A 90 N/A 342.27 mm N/A Seal Guides
354.97 X 6.99 B-70 N/A
124765
N/A Metric Standard O-Ring N/A Buna N/A 457 N/A 6.99 mm N/A 70 N/A 354.97 mm N/A Seal Guides
354.97 X 6.99 B-90 N/A
124766
N/A Metric Standard O-Ring N/A Buna N/A 457 N/A 6.99 mm N/A 90 N/A 354.97 mm N/A Seal Guides
367.67 X 6.99 B-70 N/A
124767
N/A Metric Standard O-Ring N/A Buna N/A 458 N/A 6.99 mm N/A 70 N/A 367.67 mm N/A Seal Guides
367.67 X 6.99 B-90 N/A
124768
N/A Metric Standard O-Ring N/A Buna N/A 458 N/A 6.99 mm N/A 90 N/A 367.67 mm N/A Seal Guides
380.37 X 6.99 B-70 N/A
124769
N/A Metric Standard O-Ring N/A Buna N/A 459 N/A 6.99 mm N/A 70 N/A 380.37 mm N/A Seal Guides
380.37 X 6.99 B-90 N/A
124770
N/A Metric Standard O-Ring N/A Buna N/A 459 N/A 6.99 mm N/A 90 N/A 380.37 mm N/A Seal Guides
393.07 X 6.99 B-70 N/A
124771
N/A Metric Standard O-Ring N/A Buna N/A 460 N/A 6.99 mm N/A 70 N/A 393.07 mm N/A Seal Guides
393.07 X 6.99 B-90 N/A
124772
N/A Metric Standard O-Ring N/A Buna N/A 460 N/A 6.99 mm N/A 90 N/A 393.07 mm N/A Seal Guides
405.26 X 6.99 B-70 N/A
124773
N/A Metric Standard O-Ring N/A Buna N/A 461 N/A 6.99 mm N/A 70 N/A 405.26 mm N/A Seal Guides
405.26 X 6.99 B-90 N/A
124774
N/A Metric Standard O-Ring N/A Buna N/A 461 N/A 6.99 mm N/A 90 N/A 405.26 mm N/A Seal Guides
417.96 X 6.99 B-70 N/A
124775
N/A Metric Standard O-Ring N/A Buna N/A 462 N/A 6.99 mm N/A 70 N/A 417.96 mm N/A Seal Guides
417.96 X 6.99 B-90 N/A
124776
N/A Metric Standard O-Ring N/A Buna N/A 462 N/A 6.99 mm N/A 90 N/A 417.96 mm N/A Seal Guides
430.66 X 6.99 B-70 N/A
124777
N/A Metric Standard O-Ring N/A Buna N/A 463 N/A 6.99 mm N/A 70 N/A 430.66 mm N/A Seal Guides
430.66 X 6.99 B-90 N/A
124778
N/A Metric Standard O-Ring N/A Buna N/A 463 N/A 6.99 mm N/A 90 N/A 430.66 mm N/A Seal Guides
443.36 X 6.99 B-70 N/A
124779
N/A Metric Standard O-Ring N/A Buna N/A 464 N/A 6.99 mm N/A 70 N/A 443.36 mm N/A Seal Guides
443.36 X 6.99 B-90 N/A
124780
N/A Metric Standard O-Ring N/A Buna N/A 464 N/A 6.99 mm N/A 90 N/A 443.36 mm N/A Seal Guides
456.06 X 6.99 B-70 N/A
124781
N/A Metric Standard O-Ring N/A Buna N/A 465 N/A 6.99 mm N/A 70 N/A 456.06 mm N/A Seal Guides
456.06 X 6.99 B-90 N/A
124782
N/A Metric Standard O-Ring N/A Buna N/A 465 N/A 6.99 mm N/A 90 N/A 456.06 mm N/A Seal Guides
468.76 X 6.99 B-70 N/A
124783
N/A Metric Standard O-Ring N/A Buna N/A 466 N/A 6.99 mm N/A 70 N/A 468.76 mm N/A Seal Guides
468.76 X 6.99 B-90 N/A
124784
N/A Metric Standard O-Ring N/A Buna N/A 466 N/A 6.99 mm N/A 90 N/A 468.76 mm N/A Seal Guides
481.46 X 6.99 B-70 N/A
124785
N/A Metric Standard O-Ring N/A Buna N/A 467 N/A 6.99 mm N/A 70 N/A 481.46 mm N/A Seal Guides
Unit of Measure
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