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
11.8 X 2.4 B-90	N/A 118354	N/A Metric Standard O-Ring	N/A Buna	N/A P12	N/A 2.40 mm	N/A 90	N/A 11.80 mm
12.3x2.40B70	N/A 118355	N/A Metric Standard O-Ring	N/A Buna	N/A P12.5	N/A 2.40 mm	N/A 70	N/A 12.30 mm
12.3 X 2.4 B-90	N/A 118356	N/A Metric Standard O-Ring	N/A Buna	N/A P12.5	N/A 2.40 mm	N/A 90	N/A 12.30 mm
12.6x2.40B70	N/A 118357	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 12.60 mm
12.6 X 2.4 B-90	N/A 118358	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 12.60 mm
13.3x2.40B70	N/A 118359	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 13.30 mm
13.3 X 2.4 B-90	N/A 118360	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 13.30 mm
13.5 X 2.4 B-70	N/A 118361	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 13.50 mm
13.5 X 2.4 B-90	N/A 118362	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 13.50 mm
13.6x2.40B70	N/A 118365	N/A Metric Standard O-Ring	N/A Buna	N/A p14	N/A 2.40 mm	N/A 70	N/A 13.60 mm
13.6 X 2.4 B-90	N/A 118366	N/A Metric Standard O-Ring	N/A Buna	N/A p14	N/A 2.40 mm	N/A 90	N/A 13.60 mm
14.3x2.40B70	N/A 118367	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 14.30 mm
14.3 X 2.4 B-90	N/A 118368	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 14.30 mm
14.5 X 2.4 B-70	N/A 118369	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 14.50 mm
14.5 X 2.4 B-90	N/A 118370	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 14.50 mm
14.6x2.40B70	N/A 118371	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 14.60 mm
14.6 X 2.4 B-90	N/A 118372	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 14.60 mm
14.8x2.40B70	N/A 118373	N/A Metric Standard O-Ring	N/A Buna	N/A P15	N/A 2.40 mm	N/A 70	N/A 14.80 mm
14.8 X 2.4 B-90	N/A 118374	N/A Metric Standard O-Ring	N/A Buna	N/A P15	N/A 2.40 mm	N/A 90	N/A 14.80 mm
15.3x2.40B70	N/A 118375	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 15.30 mm
15.3 X 2.4 B-90	N/A 118376	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 15.30 mm
15.5 X 2.4 B-70	N/A 118377	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 15.50 mm
15.5 X 2.4 B-90	N/A 118378	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 15.50 mm
15.6x2.40B70	N/A 118379	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 70	N/A 15.60 mm
15.6 X 2.4 B-90	N/A 118380	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.40 mm	N/A 90	N/A 15.60 mm

N/A
118354

N/A Metric Standard O-Ring

N/A Buna

N/A P12

N/A 2.40 mm

N/A 90

N/A 11.80 mm

12.3x2.40B70

N/A
118355

N/A Metric Standard O-Ring

N/A Buna

N/A P12.5

N/A 2.40 mm

N/A 70

N/A 12.30 mm

12.3 X 2.4 B-90

N/A
118356

N/A Metric Standard O-Ring

N/A Buna

N/A P12.5

N/A 2.40 mm

N/A 90

N/A 12.30 mm

12.6x2.40B70

N/A
118357

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 12.60 mm

12.6 X 2.4 B-90

N/A
118358

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 12.60 mm

13.3x2.40B70

N/A
118359

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 13.30 mm

13.3 X 2.4 B-90

N/A
118360

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 13.30 mm

13.5 X 2.4 B-70

N/A
118361

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 13.50 mm

13.5 X 2.4 B-90

N/A
118362

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 13.50 mm

13.6x2.40B70

N/A
118365

N/A Metric Standard O-Ring

N/A Buna

N/A p14

N/A 2.40 mm

N/A 70

N/A 13.60 mm

13.6 X 2.4 B-90

N/A
118366

N/A Metric Standard O-Ring

N/A Buna

N/A p14

N/A 2.40 mm

N/A 90

N/A 13.60 mm

14.3x2.40B70

N/A
118367

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 14.30 mm

14.3 X 2.4 B-90

N/A
118368

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 14.30 mm

14.5 X 2.4 B-70

N/A
118369

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 14.50 mm

14.5 X 2.4 B-90

N/A
118370

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 14.50 mm

14.6x2.40B70

N/A
118371

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 14.60 mm

14.6 X 2.4 B-90

N/A
118372

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 14.60 mm

14.8x2.40B70

N/A
118373

N/A Metric Standard O-Ring

N/A Buna

N/A P15

N/A 2.40 mm

N/A 70

N/A 14.80 mm

14.8 X 2.4 B-90

N/A
118374

N/A Metric Standard O-Ring

N/A Buna

N/A P15

N/A 2.40 mm

N/A 90

N/A 14.80 mm

15.3x2.40B70

N/A
118375

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 15.30 mm

15.3 X 2.4 B-90

N/A
118376

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 15.30 mm

15.5 X 2.4 B-70

N/A
118377

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 15.50 mm

15.5 X 2.4 B-90

N/A
118378

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 15.50 mm

15.6x2.40B70

N/A
118379

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 70

N/A 15.60 mm

15.6 X 2.4 B-90

N/A
118380

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.40 mm

N/A 90

N/A 15.60 mm