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.

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Clear Filter

Cross Section Width (mm)

Durometer

Inside Diameter (mm)

Item #

IntegrationID

Type

Material

Cross Reference

Cross Section Width

Durometer

Inside Diameter

N/A
123603
N/A Metric Standard O-Ring N/A Buna N/A BS647 N/A 5.33 mm N/A 70 N/A 174.00 mm
N/A
123604
N/A Metric Standard O-Ring N/A Buna N/A BS647 N/A 5.33 mm N/A 90 N/A 174.00 mm
N/A
123605
N/A Metric Standard O-Ring N/A Buna N/A 365 N/A 5.33 mm N/A 70 N/A 177.17 mm
N/A
123606
N/A Metric Standard O-Ring N/A Buna N/A 365 N/A 5.33 mm N/A 90 N/A 177.17 mm
N/A
123607
N/A Metric Standard O-Ring N/A Buna N/A 366 N/A 5.33 mm N/A 70 N/A 183.52 mm
N/A
123608
N/A Metric Standard O-Ring N/A Buna N/A 366 N/A 5.33 mm N/A 90 N/A 183.52 mm
N/A
123609
N/A Metric Standard O-Ring N/A Buna N/A 367 N/A 5.33 mm N/A 70 N/A 189.87 mm
N/A
123610
N/A Metric Standard O-Ring N/A Buna N/A 367 N/A 5.33 mm N/A 90 N/A 189.87 mm
N/A
123611
N/A Metric Standard O-Ring N/A Buna N/A 368 N/A 5.33 mm N/A 70 N/A 196.22 mm
N/A
123612
N/A Metric Standard O-Ring N/A Buna N/A 368 N/A 5.33 mm N/A 90 N/A 196.22 mm
N/A
123613
N/A Metric Standard O-Ring N/A Buna N/A 369 N/A 5.33 mm N/A 70 N/A 202.57 mm
N/A
123614
N/A Metric Standard O-Ring N/A Buna N/A 369 N/A 5.33 mm N/A 90 N/A 202.57 mm
N/A
123615
N/A Metric Standard O-Ring N/A Buna N/A 370 N/A 5.33 mm N/A 70 N/A 208.92 mm
N/A
123616
N/A Metric Standard O-Ring N/A Buna N/A 370 N/A 5.33 mm N/A 90 N/A 208.92 mm
N/A
123617
N/A Metric Standard O-Ring N/A Buna N/A 41334 N/A 5.33 mm N/A 70 N/A 215.27 mm
N/A
123618
N/A Metric Standard O-Ring N/A Buna N/A 41334 N/A 5.33 mm N/A 90 N/A 215.27 mm
N/A
123619
N/A Metric Standard O-Ring N/A Buna N/A 41335 N/A 5.33 mm N/A 70 N/A 221.62 mm
N/A
123620
N/A Metric Standard O-Ring N/A Buna N/A 41335 N/A 5.33 mm N/A 90 N/A 221.62 mm
N/A
123621
N/A Metric Standard O-Ring N/A Buna N/A 373 N/A 5.33 mm N/A 70 N/A 227.97 mm
N/A
123622
N/A Metric Standard O-Ring N/A Buna N/A 373 N/A 5.33 mm N/A 90 N/A 227.97 mm
N/A
123623
N/A Metric Standard O-Ring N/A Buna N/A 41337 N/A 5.33 mm N/A 70 N/A 234.32 mm
N/A
123624
N/A Metric Standard O-Ring N/A Buna N/A 41337 N/A 5.33 mm N/A 90 N/A 234.32 mm
N/A
123625
N/A Metric Standard O-Ring N/A Buna N/A 41338 N/A 5.33 mm N/A 70 N/A 240.67 mm
N/A
123626
N/A Metric Standard O-Ring N/A Buna N/A 41338 N/A 5.33 mm N/A 90 N/A 240.67 mm
N/A
123627
N/A Metric Standard O-Ring N/A Buna N/A 41339 N/A 5.33 mm N/A 70 N/A 247.02 mm
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