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
22.2 X 3 B-90	N/A 119216	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 22.20 mm
22.5 X 3 B-70	N/A 119217	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 22.50 mm
22.5 X 3 B-90	N/A 119218	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 22.50 mm
23 X 3 B-70	N/A 119219	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 23.00 mm
23 X 3 B-90	N/A 119220	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 23.00 mm
23.5 X 3 B-70	N/A 119221	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 23.50 mm
23.5 X 3 B-90	N/A 119222	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 23.50 mm
24 X 3 B-70	N/A 119223	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 24.00 mm
24 X 3 B-90	N/A 119224	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 24.00 mm
24.2 X 3 B-70	N/A 119225	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 24.20 mm
24.2 X 3 B-90	N/A 119226	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 24.20 mm
24.5 X 3 B-70	N/A 119227	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 24.50 mm
24.5 X 3 B-90	N/A 119228	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 24.50 mm
24.6 X 3 B-70	N/A 119229	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 24.60 mm
24.6 X 3 B-90	N/A 119230	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 24.60 mm
25 X 3 B-70	N/A 119231	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 25.00 mm
25 X 3 B-90	N/A 119232	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 25.00 mm
25.2 X 3 B-70	N/A 119233	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 25.20 mm
25.2 X 3 B-90	N/A 119234	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 25.20 mm
25.5 X 3 B-70	N/A 119235	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 25.50 mm
25.5 X 3 B-90	N/A 119236	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 25.50 mm
26 X 3 B-70	N/A 119237	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 26.00 mm
26 X 3 B-90	N/A 119238	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 26.00 mm
26.2 X 3 B-70	N/A 119239	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 70	N/A 26.20 mm
26.2 X 3 B-90	N/A 119240	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 3.00 mm	N/A 90	N/A 26.20 mm

N/A
119216

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 22.20 mm

22.5 X 3 B-70

N/A
119217

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 22.50 mm

22.5 X 3 B-90

N/A
119218

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 22.50 mm

23 X 3 B-70

N/A
119219

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 23.00 mm

23 X 3 B-90

N/A
119220

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 23.00 mm

23.5 X 3 B-70

N/A
119221

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 23.50 mm

23.5 X 3 B-90

N/A
119222

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 23.50 mm

24 X 3 B-70

N/A
119223

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 24.00 mm

24 X 3 B-90

N/A
119224

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 24.00 mm

24.2 X 3 B-70

N/A
119225

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 24.20 mm

24.2 X 3 B-90

N/A
119226

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 24.20 mm

24.5 X 3 B-70

N/A
119227

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 24.50 mm

24.5 X 3 B-90

N/A
119228

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 24.50 mm

24.6 X 3 B-70

N/A
119229

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 24.60 mm

24.6 X 3 B-90

N/A
119230

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 24.60 mm

25 X 3 B-70

N/A
119231

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 25.00 mm

25 X 3 B-90

N/A
119232

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 25.00 mm

25.2 X 3 B-70

N/A
119233

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 25.20 mm

25.2 X 3 B-90

N/A
119234

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 25.20 mm

25.5 X 3 B-70

N/A
119235

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 25.50 mm

25.5 X 3 B-90

N/A
119236

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 25.50 mm

26 X 3 B-70

N/A
119237

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 26.00 mm

26 X 3 B-90

N/A
119238

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 26.00 mm

26.2 X 3 B-70

N/A
119239

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 70

N/A 26.20 mm

26.2 X 3 B-90

N/A
119240

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 3.00 mm

N/A 90

N/A 26.20 mm