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
70x7.00B70	N/A 124811	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 70.00 mm	N/A Seal Guides
70 X 7 B-90	N/A 124812	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 70.00 mm	N/A Seal Guides
75x7.00B70	N/A 124813	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 75.00 mm	N/A Seal Guides
75 X 7 B-90	N/A 124814	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 75.00 mm	N/A Seal Guides
82 X 7 B-70	N/A 124815	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 82.00 mm	N/A Seal Guides
82 X 7 B-90	N/A 124816	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 82.00 mm	N/A Seal Guides
90x7.00B70	N/A 124817	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 90.00 mm	N/A Seal Guides
90 X 7 B-90	N/A 124818	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 90.00 mm	N/A Seal Guides
95x7.00B70	N/A 124819	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 95.00 mm	N/A Seal Guides
95 X 7 B-90	N/A 124820	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 95.00 mm	N/A Seal Guides
105x7.00B70	N/A 124821	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 105.00 mm	N/A Seal Guides
105 X 7 B-90	N/A 124822	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 105.00 mm	N/A Seal Guides
110x7.00B70	N/A 124823	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 110.00 mm	N/A Seal Guides
110 X 7 B-90	N/A 124824	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 110.00 mm	N/A Seal Guides
192 X 7 B-70	N/A 124825	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 192.00 mm	N/A Seal Guides
192 X 7 B-90	N/A 124826	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 192.00 mm	N/A Seal Guides
206x7.00B70	N/A 124827	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 206.00 mm	N/A Seal Guides
206 X 7 B-90	N/A 124828	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 206.00 mm	N/A Seal Guides
212x7.00B70	N/A 124829	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 212.00 mm	N/A Seal Guides
212 X 7 B-90	N/A 124830	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 212.00 mm	N/A Seal Guides
218 X 7 B-70	N/A 124831	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 218.00 mm	N/A Seal Guides
218 X 7 B-90	N/A 124832	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 218.00 mm	N/A Seal Guides
224x7.00B70	N/A 124833	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 224.00 mm	N/A Seal Guides
224 X 7 B-90	N/A 124834	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 90	N/A 224.00 mm	N/A Seal Guides
230 X 7 B-70	N/A 124835	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 7.00 mm	N/A 70	N/A 230.00 mm	N/A Seal Guides

N/A
124811

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 70.00 mm

N/A Seal Guides

70 X 7 B-90

N/A
124812

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 70.00 mm

N/A Seal Guides

75x7.00B70

N/A
124813

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 75.00 mm

N/A Seal Guides

75 X 7 B-90

N/A
124814

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 75.00 mm

N/A Seal Guides

82 X 7 B-70

N/A
124815

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 82.00 mm

N/A Seal Guides

82 X 7 B-90

N/A
124816

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 82.00 mm

N/A Seal Guides

90x7.00B70

N/A
124817

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 90.00 mm

N/A Seal Guides

90 X 7 B-90

N/A
124818

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 90.00 mm

N/A Seal Guides

95x7.00B70

N/A
124819

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 95.00 mm

N/A Seal Guides

95 X 7 B-90

N/A
124820

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 95.00 mm

N/A Seal Guides

105x7.00B70

N/A
124821

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 105.00 mm

N/A Seal Guides

105 X 7 B-90

N/A
124822

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 105.00 mm

N/A Seal Guides

110x7.00B70

N/A
124823

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 110.00 mm

N/A Seal Guides

110 X 7 B-90

N/A
124824

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 110.00 mm

N/A Seal Guides

192 X 7 B-70

N/A
124825

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 192.00 mm

N/A Seal Guides

192 X 7 B-90

N/A
124826

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 192.00 mm

N/A Seal Guides

206x7.00B70

N/A
124827

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 206.00 mm

N/A Seal Guides

206 X 7 B-90

N/A
124828

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 206.00 mm

N/A Seal Guides

212x7.00B70

N/A
124829

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 212.00 mm

N/A Seal Guides

212 X 7 B-90

N/A
124830

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 212.00 mm

N/A Seal Guides

218 X 7 B-70

N/A
124831

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 218.00 mm

N/A Seal Guides

218 X 7 B-90

N/A
124832

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 218.00 mm

N/A Seal Guides

224x7.00B70

N/A
124833

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 224.00 mm

N/A Seal Guides

224 X 7 B-90

N/A
124834

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 90

N/A 224.00 mm

N/A Seal Guides

230 X 7 B-70

N/A
124835

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 7.00 mm

N/A 70

N/A 230.00 mm

N/A Seal Guides