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
24 X 6 B-90	N/A 124078	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 24.00 mm	N/A Seal Guides
25x6.00B70	N/A 124079	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 25.00 mm	N/A Seal Guides
25 X 6 B-90	N/A 124080	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 25.00 mm	N/A Seal Guides
26x6.00B70	N/A 124081	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 26.00 mm	N/A Seal Guides
26 X 6 B-90	N/A 124082	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 26.00 mm	N/A Seal Guides
27x6.00B70	N/A 124083	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 27.00 mm	N/A Seal Guides
27 X 6 B-90	N/A 124084	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 27.00 mm	N/A Seal Guides
28x6.00B70	N/A 124085	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 28.00 mm	N/A Seal Guides
28 X 6 B-90	N/A 124086	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 28.00 mm	N/A Seal Guides
29x6.00B70	N/A 124087	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 29.00 mm	N/A Seal Guides
29 X 6 B-90	N/A 124088	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 29.00 mm	N/A Seal Guides
30x6.00B70	N/A 124089	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 30.00 mm	N/A Seal Guides
30 X 6 B-90	N/A 124090	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 30.00 mm	N/A Seal Guides
31x6.00B70	N/A 124091	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 31.00 mm	N/A Seal Guides
31 X 6 B-90	N/A 124092	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 31.00 mm	N/A Seal Guides
32x6.00B70	N/A 124093	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 32.00 mm	N/A Seal Guides
32 X 6 B-90	N/A 124094	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 32.00 mm	N/A Seal Guides
33x6.00B70	N/A 124095	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 33.00 mm	N/A Seal Guides
33 X 6 B-90	N/A 124096	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 33.00 mm	N/A Seal Guides
34x6.00B70	N/A 124097	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 34.00 mm	N/A Seal Guides
34 X 6 B-90	N/A 124098	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 34.00 mm	N/A Seal Guides
35x6.00B70	N/A 124099	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 35.00 mm	N/A Seal Guides
35 X 6 B-90	N/A 124100	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 35.00 mm	N/A Seal Guides
36x6.00B70	N/A 124101	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 70	N/A 36.00 mm	N/A Seal Guides
36 X 6 B-90	N/A 124102	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 6.00 mm	N/A 90	N/A 36.00 mm	N/A Seal Guides

N/A
124078

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 24.00 mm

N/A Seal Guides

25x6.00B70

N/A
124079

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 25.00 mm

N/A Seal Guides

25 X 6 B-90

N/A
124080

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 25.00 mm

N/A Seal Guides

26x6.00B70

N/A
124081

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 26.00 mm

N/A Seal Guides

26 X 6 B-90

N/A
124082

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 26.00 mm

N/A Seal Guides

27x6.00B70

N/A
124083

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 27.00 mm

N/A Seal Guides

27 X 6 B-90

N/A
124084

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 27.00 mm

N/A Seal Guides

28x6.00B70

N/A
124085

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 28.00 mm

N/A Seal Guides

28 X 6 B-90

N/A
124086

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 28.00 mm

N/A Seal Guides

29x6.00B70

N/A
124087

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 29.00 mm

N/A Seal Guides

29 X 6 B-90

N/A
124088

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 29.00 mm

N/A Seal Guides

30x6.00B70

N/A
124089

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 30.00 mm

N/A Seal Guides

30 X 6 B-90

N/A
124090

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 30.00 mm

N/A Seal Guides

31x6.00B70

N/A
124091

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 31.00 mm

N/A Seal Guides

31 X 6 B-90

N/A
124092

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 31.00 mm

N/A Seal Guides

32x6.00B70

N/A
124093

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 32.00 mm

N/A Seal Guides

32 X 6 B-90

N/A
124094

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 32.00 mm

N/A Seal Guides

33x6.00B70

N/A
124095

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 33.00 mm

N/A Seal Guides

33 X 6 B-90

N/A
124096

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 33.00 mm

N/A Seal Guides

34x6.00B70

N/A
124097

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 34.00 mm

N/A Seal Guides

34 X 6 B-90

N/A
124098

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 34.00 mm

N/A Seal Guides

35x6.00B70

N/A
124099

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 35.00 mm

N/A Seal Guides

35 X 6 B-90

N/A
124100

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 35.00 mm

N/A Seal Guides

36x6.00B70

N/A
124101

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 70

N/A 36.00 mm

N/A Seal Guides

36 X 6 B-90

N/A
124102

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 6.00 mm

N/A 90

N/A 36.00 mm

N/A Seal Guides