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
228.27 X 2.62 B-70	N/A 119041	N/A Metric Standard O-Ring	N/A Buna	N/A 175	N/A 2.62 mm	N/A 70	N/A 228.27 mm
228.27 X 2.62 B-90	N/A 119042	N/A Metric Standard O-Ring	N/A Buna	N/A 175	N/A 2.62 mm	N/A 90	N/A 228.27 mm
234.62 X 2.62 B-70	N/A 119043	N/A Metric Standard O-Ring	N/A Buna	N/A 176	N/A 2.62 mm	N/A 70	N/A 234.62 mm
234.62 X 2.62 B-90	N/A 119044	N/A Metric Standard O-Ring	N/A Buna	N/A 176	N/A 2.62 mm	N/A 90	N/A 234.62 mm
240.97 X 2.62 B-70	N/A 119045	N/A Metric Standard O-Ring	N/A Buna	N/A 177	N/A 2.62 mm	N/A 70	N/A 240.97 mm
240.97 X 2.62 B-90	N/A 119046	N/A Metric Standard O-Ring	N/A Buna	N/A 177	N/A 2.62 mm	N/A 90	N/A 240.97 mm
247.32 X 2.62 B-70	N/A 119047	N/A Metric Standard O-Ring	N/A Buna	N/A 178	N/A 2.62 mm	N/A 70	N/A 247.32 mm
247.32 X 2.62 B-90	N/A 119048	N/A Metric Standard O-Ring	N/A Buna	N/A 178	N/A 2.62 mm	N/A 90	N/A 247.32 mm
14x2.65B70	N/A 119049	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 14.00 mm
14 X 2.65 B-90	N/A 119050	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 14.00 mm
15x2.65B70	N/A 119051	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 15.00 mm
15 X 2.65 B-90	N/A 119052	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 15.00 mm
16x2.65B70	N/A 119053	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 16.00 mm
16 X 2.65 B-90	N/A 119054	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 16.00 mm
17x2.65B70	N/A 119055	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 17.00 mm
17 X 2.65 B-90	N/A 119056	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 17.00 mm
18x2.65B70	N/A 119057	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 18.00 mm
18 X 2.65 B-90	N/A 119058	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 18.00 mm
19x2.65B70	N/A 119059	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 19.00 mm
19 X 2.65 B-90	N/A 119060	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 19.00 mm
20x2.65B70	N/A 119061	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 20.00 mm
20 X 2.65 B-90	N/A 119062	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 20.00 mm
21.2x2.65B70	N/A 119063	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 21.20 mm
21.2 X 2.65 B-90	N/A 119064	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 21.20 mm
22.4x2.65B70	N/A 119065	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 22.40 mm

N/A
119041

N/A Metric Standard O-Ring

N/A Buna

N/A 175

N/A 2.62 mm

N/A 70

N/A 228.27 mm

228.27 X 2.62 B-90

N/A
119042

N/A Metric Standard O-Ring

N/A Buna

N/A 175

N/A 2.62 mm

N/A 90

N/A 228.27 mm

234.62 X 2.62 B-70

N/A
119043

N/A Metric Standard O-Ring

N/A Buna

N/A 176

N/A 2.62 mm

N/A 70

N/A 234.62 mm

234.62 X 2.62 B-90

N/A
119044

N/A Metric Standard O-Ring

N/A Buna

N/A 176

N/A 2.62 mm

N/A 90

N/A 234.62 mm

240.97 X 2.62 B-70

N/A
119045

N/A Metric Standard O-Ring

N/A Buna

N/A 177

N/A 2.62 mm

N/A 70

N/A 240.97 mm

240.97 X 2.62 B-90

N/A
119046

N/A Metric Standard O-Ring

N/A Buna

N/A 177

N/A 2.62 mm

N/A 90

N/A 240.97 mm

247.32 X 2.62 B-70

N/A
119047

N/A Metric Standard O-Ring

N/A Buna

N/A 178

N/A 2.62 mm

N/A 70

N/A 247.32 mm

247.32 X 2.62 B-90

N/A
119048

N/A Metric Standard O-Ring

N/A Buna

N/A 178

N/A 2.62 mm

N/A 90

N/A 247.32 mm

14x2.65B70

N/A
119049

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 14.00 mm

14 X 2.65 B-90

N/A
119050

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 14.00 mm

15x2.65B70

N/A
119051

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 15.00 mm

15 X 2.65 B-90

N/A
119052

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 15.00 mm

16x2.65B70

N/A
119053

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 16.00 mm

16 X 2.65 B-90

N/A
119054

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 16.00 mm

17x2.65B70

N/A
119055

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 17.00 mm

17 X 2.65 B-90

N/A
119056

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 17.00 mm

18x2.65B70

N/A
119057

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 18.00 mm

18 X 2.65 B-90

N/A
119058

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 18.00 mm

19x2.65B70

N/A
119059

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 19.00 mm

19 X 2.65 B-90

N/A
119060

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 19.00 mm

20x2.65B70

N/A
119061

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 20.00 mm

20 X 2.65 B-90

N/A
119062

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 20.00 mm

21.2x2.65B70

N/A
119063

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 21.20 mm

21.2 X 2.65 B-90

N/A
119064

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 21.20 mm

22.4x2.65B70

N/A
119065

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 22.40 mm