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
15.8x2.40B70	N/A 118381	N/A Metric Standard O-Ring	N/A Buna	N/A P16	N/A 2.40 mm	N/A 70	N/A 15.80 mm
15.8 X 2.4 B-90	N/A 118382	N/A Metric Standard O-Ring	N/A Buna	N/A P16	N/A 2.40 mm	N/A 90	N/A 15.80 mm
15.9 X 2.4 B-70	N/A 118383	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 15.90 mm
15.9 X 2.4 B-90	N/A 118384	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 15.90 mm
16.3x2.40B70	N/A 118385	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 16.30 mm
16.3 X 2.4 B-90	N/A 118386	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 16.30 mm
16.6x2.40B70	N/A 118387	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 16.60 mm
16.6 X 2.4 B-90	N/A 118388	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 16.60 mm
17.3x2.40B70	N/A 118389	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 17.30 mm
17.3 X 2.4 B-90	N/A 118390	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 17.30 mm
17.5 X 2.4 B-70	N/A 118391	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 17.50 mm
17.5 X 2.4 B-90	N/A 118392	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 17.50 mm
17.6x2.40B70	N/A 118393	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 17.60 mm
17.6 X 2.4 B-90	N/A 118394	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 17.60 mm
17.8x2.40B70	N/A 118395	N/A Metric Standard O-Ring	N/A Buna	N/A P18	N/A 2.40 mm	N/A 70	N/A 17.80 mm
17.8 X 2.4 B-90	N/A 118396	N/A Metric Standard O-Ring	N/A Buna	N/A P18	N/A 2.40 mm	N/A 90	N/A 17.80 mm
18.3x2.40B70	N/A 118397	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 18.30 mm
18.3 X 2.4 B-90	N/A 118398	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 18.30 mm
18.6x2.40B70	N/A 118399	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 18.60 mm
18.6 X 2.4 B-90	N/A 118400	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 18.60 mm
19.3x2.40B70	N/A 118401	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 19.30 mm
19.3 X 2.4 B-90	N/A 118402	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 19.30 mm
19.6x2.40B70	N/A 118403	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 19.60 mm
19.6 X 2.4 B-90	N/A 118404	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 19.60 mm
19.8x2.40B70	N/A 118405	N/A Metric Standard O-Ring	N/A Buna	N/A P20	N/A 2.40 mm	N/A 70	N/A 19.80 mm

N/A
118381

N/A Metric Standard O-Ring

N/A Buna

N/A P16

N/A 2.40 mm

N/A 70

N/A 15.80 mm

15.8 X 2.4 B-90

N/A
118382

N/A Metric Standard O-Ring

N/A Buna

N/A P16

N/A 2.40 mm

N/A 90

N/A 15.80 mm

15.9 X 2.4 B-70

N/A
118383

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 15.90 mm

15.9 X 2.4 B-90

N/A
118384

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 15.90 mm

16.3x2.40B70

N/A
118385

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 16.30 mm

16.3 X 2.4 B-90

N/A
118386

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 16.30 mm

16.6x2.40B70

N/A
118387

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 16.60 mm

16.6 X 2.4 B-90

N/A
118388

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 16.60 mm

17.3x2.40B70

N/A
118389

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 17.30 mm

17.3 X 2.4 B-90

N/A
118390

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 17.30 mm

17.5 X 2.4 B-70

N/A
118391

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 17.50 mm

17.5 X 2.4 B-90

N/A
118392

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 17.50 mm

17.6x2.40B70

N/A
118393

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 17.60 mm

17.6 X 2.4 B-90

N/A
118394

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 17.60 mm

17.8x2.40B70

N/A
118395

N/A Metric Standard O-Ring

N/A Buna

N/A P18

N/A 2.40 mm

N/A 70

N/A 17.80 mm

17.8 X 2.4 B-90

N/A
118396

N/A Metric Standard O-Ring

N/A Buna

N/A P18

N/A 2.40 mm

N/A 90

N/A 17.80 mm

18.3x2.40B70

N/A
118397

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 18.30 mm

18.3 X 2.4 B-90

N/A
118398

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 18.30 mm

18.6x2.40B70

N/A
118399

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 18.60 mm

18.6 X 2.4 B-90

N/A
118400

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 18.60 mm

19.3x2.40B70

N/A
118401

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 19.30 mm

19.3 X 2.4 B-90

N/A
118402

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 19.30 mm

19.6x2.40B70

N/A
118403

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 19.60 mm

19.6 X 2.4 B-90

N/A
118404

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 19.60 mm

19.8x2.40B70

N/A
118405

N/A Metric Standard O-Ring

N/A Buna

N/A P20

N/A 2.40 mm

N/A 70

N/A 19.80 mm