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
14 X 1 B-90	N/A 117146	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 14.00 mm	N/A Seal Guides
14.5 X 1 B-70	N/A 117147	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 14.50 mm	N/A Seal Guides
14.5 X 1 B-90	N/A 117148	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 14.50 mm	N/A Seal Guides
15 X 1 B-70	N/A 117149	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 15.00 mm	N/A Seal Guides
15 X 1 B-90	N/A 117150	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 15.00 mm	N/A Seal Guides
15.5 X 1 B-70	N/A 117151	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 15.50 mm	N/A Seal Guides
15.5 X 1 B-90	N/A 117152	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 15.50 mm	N/A Seal Guides
16 X 1 B-70	N/A 117153	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 16.00 mm	N/A Seal Guides
16 X 1 B-90	N/A 117154	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 16.00 mm	N/A Seal Guides
16.5 X 1 B-70	N/A 117155	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 16.50 mm	N/A Seal Guides
16.5 X 1 B-90	N/A 117156	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 16.50 mm	N/A Seal Guides
17 X 1 B-70	N/A 117157	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 17.00 mm	N/A Seal Guides
17 X 1 B-90	N/A 117158	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 17.00 mm	N/A Seal Guides
17.5 X 1 B-70	N/A 117159	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 17.50 mm	N/A Seal Guides
17.5 X 1 B-90	N/A 117160	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 17.50 mm	N/A Seal Guides
18 X 1 B-70	N/A 117161	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 18.00 mm	N/A Seal Guides
18 X 1 B-90	N/A 117162	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 18.00 mm	N/A Seal Guides
18.5 X 1 B-70	N/A 117163	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 18.50 mm	N/A Seal Guides
18.5 X 1 B-90	N/A 117164	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 18.50 mm	N/A Seal Guides
19 X 1 B-70	N/A 117165	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 19.00 mm	N/A Seal Guides
19 X 1 B-90	N/A 117166	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 19.00 mm	N/A Seal Guides
19.5 X 1 B-70	N/A 117167	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 19.50 mm	N/A Seal Guides
19.5 X 1 B-90	N/A 117168	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 19.50 mm	N/A Seal Guides
20 X 1 B-70	N/A 117169	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 70	N/A 20.00 mm	N/A Seal Guides
20 X 1 B-90	N/A 117170	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.00 mm	N/A 90	N/A 20.00 mm	N/A Seal Guides

N/A
117146

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 14.00 mm

N/A Seal Guides

14.5 X 1 B-70

N/A
117147

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 14.50 mm

N/A Seal Guides

14.5 X 1 B-90

N/A
117148

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 14.50 mm

N/A Seal Guides

15 X 1 B-70

N/A
117149

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 15.00 mm

N/A Seal Guides

15 X 1 B-90

N/A
117150

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 15.00 mm

N/A Seal Guides

15.5 X 1 B-70

N/A
117151

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 15.50 mm

N/A Seal Guides

15.5 X 1 B-90

N/A
117152

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 15.50 mm

N/A Seal Guides

16 X 1 B-70

N/A
117153

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 16.00 mm

N/A Seal Guides

16 X 1 B-90

N/A
117154

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 16.00 mm

N/A Seal Guides

16.5 X 1 B-70

N/A
117155

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 16.50 mm

N/A Seal Guides

16.5 X 1 B-90

N/A
117156

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 16.50 mm

N/A Seal Guides

17 X 1 B-70

N/A
117157

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 17.00 mm

N/A Seal Guides

17 X 1 B-90

N/A
117158

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 17.00 mm

N/A Seal Guides

17.5 X 1 B-70

N/A
117159

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 17.50 mm

N/A Seal Guides

17.5 X 1 B-90

N/A
117160

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 17.50 mm

N/A Seal Guides

18 X 1 B-70

N/A
117161

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 18.00 mm

N/A Seal Guides

18 X 1 B-90

N/A
117162

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 18.00 mm

N/A Seal Guides

18.5 X 1 B-70

N/A
117163

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 18.50 mm

N/A Seal Guides

18.5 X 1 B-90

N/A
117164

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 18.50 mm

N/A Seal Guides

19 X 1 B-70

N/A
117165

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 19.00 mm

N/A Seal Guides

19 X 1 B-90

N/A
117166

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 19.00 mm

N/A Seal Guides

19.5 X 1 B-70

N/A
117167

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 19.50 mm

N/A Seal Guides

19.5 X 1 B-90

N/A
117168

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 19.50 mm

N/A Seal Guides

20 X 1 B-70

N/A
117169

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 70

N/A 20.00 mm

N/A Seal Guides

20 X 1 B-90

N/A
117170

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.00 mm

N/A 90

N/A 20.00 mm

N/A Seal Guides