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
48 X 1.5 B-90	N/A 117446	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 48.00 mm	N/A Seal Guides
49 X 1.5 B-70	N/A 117447	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 49.00 mm	N/A Seal Guides
49 X 1.5 B-90	N/A 117448	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 49.00 mm	N/A Seal Guides
50 X 1.5 B-70	N/A 117449	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 50.00 mm	N/A Seal Guides
50 X 1.5 B-90	N/A 117450	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 50.00 mm	N/A Seal Guides
51 X 1.5 B-70	N/A 117451	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 51.00 mm	N/A Seal Guides
51 X 1.5 B-90	N/A 117452	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 51.00 mm	N/A Seal Guides
52 X 1.5 B-70	N/A 117453	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 52.00 mm	N/A Seal Guides
52 X 1.5 B-90	N/A 117454	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 52.00 mm	N/A Seal Guides
53 X 1.5 B-70	N/A 117455	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 53.00 mm	N/A Seal Guides
53 X 1.5 B-90	N/A 117456	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 53.00 mm	N/A Seal Guides
54 X 1.5 B-70	N/A 117457	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 54.00 mm	N/A Seal Guides
54 X 1.5 B-90	N/A 117458	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 54.00 mm	N/A Seal Guides
55 X 1.5 B-70	N/A 117459	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 55.00 mm	N/A Seal Guides
55 X 1.5 B-90	N/A 117460	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 55.00 mm	N/A Seal Guides
56 X 1.5 B-70	N/A 117461	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 56.00 mm	N/A Seal Guides
56 X 1.5 B-90	N/A 117462	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 56.00 mm	N/A Seal Guides
57 X 1.5 B-70	N/A 117463	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 57.00 mm	N/A Seal Guides
57 X 1.5 B-90	N/A 117464	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 57.00 mm	N/A Seal Guides
58 X 1.5 B-70	N/A 117465	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 58.00 mm	N/A Seal Guides
58 X 1.5 B-90	N/A 117466	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 58.00 mm	N/A Seal Guides
59 X 1.5 B-70	N/A 117467	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 59.00 mm	N/A Seal Guides
59 X 1.5 B-90	N/A 117468	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 59.00 mm	N/A Seal Guides
60 X 1.5 B-70	N/A 117469	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 60.00 mm	N/A Seal Guides
60 X 1.5 B-90	N/A 117470	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 60.00 mm	N/A Seal Guides

N/A
117446

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 48.00 mm

N/A Seal Guides

49 X 1.5 B-70

N/A
117447

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 49.00 mm

N/A Seal Guides

49 X 1.5 B-90

N/A
117448

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 49.00 mm

N/A Seal Guides

50 X 1.5 B-70

N/A
117449

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 50.00 mm

N/A Seal Guides

50 X 1.5 B-90

N/A
117450

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 50.00 mm

N/A Seal Guides

51 X 1.5 B-70

N/A
117451

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 51.00 mm

N/A Seal Guides

51 X 1.5 B-90

N/A
117452

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 51.00 mm

N/A Seal Guides

52 X 1.5 B-70

N/A
117453

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 52.00 mm

N/A Seal Guides

52 X 1.5 B-90

N/A
117454

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 52.00 mm

N/A Seal Guides

53 X 1.5 B-70

N/A
117455

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 53.00 mm

N/A Seal Guides

53 X 1.5 B-90

N/A
117456

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 53.00 mm

N/A Seal Guides

54 X 1.5 B-70

N/A
117457

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 54.00 mm

N/A Seal Guides

54 X 1.5 B-90

N/A
117458

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 54.00 mm

N/A Seal Guides

55 X 1.5 B-70

N/A
117459

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 55.00 mm

N/A Seal Guides

55 X 1.5 B-90

N/A
117460

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 55.00 mm

N/A Seal Guides

56 X 1.5 B-70

N/A
117461

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 56.00 mm

N/A Seal Guides

56 X 1.5 B-90

N/A
117462

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 56.00 mm

N/A Seal Guides

57 X 1.5 B-70

N/A
117463

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 57.00 mm

N/A Seal Guides

57 X 1.5 B-90

N/A
117464

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 57.00 mm

N/A Seal Guides

58 X 1.5 B-70

N/A
117465

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 58.00 mm

N/A Seal Guides

58 X 1.5 B-90

N/A
117466

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 58.00 mm

N/A Seal Guides

59 X 1.5 B-70

N/A
117467

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 59.00 mm

N/A Seal Guides

59 X 1.5 B-90

N/A
117468

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 59.00 mm

N/A Seal Guides

60 X 1.5 B-70

N/A
117469

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 60.00 mm

N/A Seal Guides

60 X 1.5 B-90

N/A
117470

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 60.00 mm

N/A Seal Guides