Metric Buna O-Rings

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
466 X 4 B-70	N/A 122199	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 466.00 mm	N/A Seal Guides
466 X 4 B-90	N/A 122200	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 466.00 mm	N/A Seal Guides
467 X 4 B-70	N/A 122201	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 467.00 mm	N/A Seal Guides
467 X 4 B-90	N/A 122202	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 467.00 mm	N/A Seal Guides
468 X 4 B-70	N/A 122203	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 468.00 mm	N/A Seal Guides
468 X 4 B-90	N/A 122204	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 468.00 mm	N/A Seal Guides
469 X 4 B-70	N/A 122205	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 469.00 mm	N/A Seal Guides
469 X 4 B-90	N/A 122206	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 469.00 mm	N/A Seal Guides
470x4.00B70	N/A 122207	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 470.00 mm	N/A Seal Guides
470 X 4 B-90	N/A 122208	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 470.00 mm	N/A Seal Guides
471 X 4 B-70	N/A 122209	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 471.00 mm	N/A Seal Guides
471 X 4 B-90	N/A 122210	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 471.00 mm	N/A Seal Guides
472 X 4 B-70	N/A 122211	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 472.00 mm	N/A Seal Guides
472 X 4 B-90	N/A 122212	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 472.00 mm	N/A Seal Guides
473 X 4 B-70	N/A 122213	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 473.00 mm	N/A Seal Guides
473 X 4 B-90	N/A 122214	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 473.00 mm	N/A Seal Guides
474 X 4 B-70	N/A 122215	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 474.00 mm	N/A Seal Guides
474 X 4 B-90	N/A 122216	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 474.00 mm	N/A Seal Guides
475 X 4 B-70	N/A 122217	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 475.00 mm	N/A Seal Guides
475 X 4 B-90	N/A 122218	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 475.00 mm	N/A Seal Guides
476 X 4 B-70	N/A 122219	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 476.00 mm	N/A Seal Guides
476 X 4 B-90	N/A 122220	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 476.00 mm	N/A Seal Guides
477 X 4 B-70	N/A 122221	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 477.00 mm	N/A Seal Guides
477 X 4 B-90	N/A 122222	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 90	N/A 477.00 mm	N/A Seal Guides
478 X 4 B-70	N/A 122223	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 4.00 mm	N/A 70	N/A 478.00 mm	N/A Seal Guides

N/A
122199

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 466.00 mm

N/A Seal Guides

466 X 4 B-90

N/A
122200

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 466.00 mm

N/A Seal Guides

467 X 4 B-70

N/A
122201

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 467.00 mm

N/A Seal Guides

467 X 4 B-90

N/A
122202

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 467.00 mm

N/A Seal Guides

468 X 4 B-70

N/A
122203

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 468.00 mm

N/A Seal Guides

468 X 4 B-90

N/A
122204

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 468.00 mm

N/A Seal Guides

469 X 4 B-70

N/A
122205

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 469.00 mm

N/A Seal Guides

469 X 4 B-90

N/A
122206

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 469.00 mm

N/A Seal Guides

470x4.00B70

N/A
122207

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 470.00 mm

N/A Seal Guides

470 X 4 B-90

N/A
122208

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 470.00 mm

N/A Seal Guides

471 X 4 B-70

N/A
122209

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 471.00 mm

N/A Seal Guides

471 X 4 B-90

N/A
122210

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 471.00 mm

N/A Seal Guides

472 X 4 B-70

N/A
122211

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 472.00 mm

N/A Seal Guides

472 X 4 B-90

N/A
122212

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 472.00 mm

N/A Seal Guides

473 X 4 B-70

N/A
122213

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 473.00 mm

N/A Seal Guides

473 X 4 B-90

N/A
122214

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 473.00 mm

N/A Seal Guides

474 X 4 B-70

N/A
122215

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 474.00 mm

N/A Seal Guides

474 X 4 B-90

N/A
122216

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 474.00 mm

N/A Seal Guides

475 X 4 B-70

N/A
122217

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 475.00 mm

N/A Seal Guides

475 X 4 B-90

N/A
122218

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 475.00 mm

N/A Seal Guides

476 X 4 B-70

N/A
122219

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 476.00 mm

N/A Seal Guides

476 X 4 B-90

N/A
122220

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 476.00 mm

N/A Seal Guides

477 X 4 B-70

N/A
122221

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 477.00 mm

N/A Seal Guides

477 X 4 B-90

N/A
122222

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 90

N/A 477.00 mm

N/A Seal Guides

478 X 4 B-70

N/A
122223

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 4.00 mm

N/A 70

N/A 478.00 mm

N/A Seal Guides