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
22.4 X 2.65 B-90	N/A 119066	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 22.40 mm
23.6x2.65B70	N/A 119067	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 23.60 mm
23.6 X 2.65 B-90	N/A 119068	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 23.60 mm
25x2.65B70	N/A 119069	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 25.00 mm
25 X 2.65 B-90	N/A 119070	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 25.00 mm
25.8 X 2.65 B-70	N/A 119071	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 25.80 mm
25.8 X 2.65 B-90	N/A 119072	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 25.80 mm
26.5 X 2.66 B-70	N/A 119073	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.66 mm	N/A 70	N/A 26.50 mm
26.5 X 2.66 B-90	N/A 119074	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.66 mm	N/A 90	N/A 26.50 mm
28x2.65B70	N/A 119075	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 28.00 mm
28 X 2.65 B-90	N/A 119076	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 28.00 mm
30x2.65B70	N/A 119077	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 30.00 mm
30 X 2.65 B-90	N/A 119078	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 30.00 mm
31.5x2.65B70	N/A 119079	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 31.50 mm
31.5 X 2.65 B-90	N/A 119080	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 31.50 mm
32.5x2.65B70	N/A 119081	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 32.50 mm
32.5 X 2.65 B-90	N/A 119082	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 32.50 mm
33.5x2.65B70	N/A 119083	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 33.50 mm
33.5 X 2.65 B-90	N/A 119084	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 33.50 mm
34.5x2.65B70	N/A 119085	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 34.50 mm
34.5 X 2.65 B-90	N/A 119086	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 34.50 mm
35.5x2.65B70	N/A 119087	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 35.50 mm
35.5 X 2.65 B-90	N/A 119088	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 35.50 mm
36.5x2.65B70	N/A 119089	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 70	N/A 36.50 mm
36.5 X 2.65 B-90	N/A 119090	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.65 mm	N/A 90	N/A 36.50 mm

N/A
119066

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 22.40 mm

23.6x2.65B70

N/A
119067

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 23.60 mm

23.6 X 2.65 B-90

N/A
119068

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 23.60 mm

25x2.65B70

N/A
119069

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 25.00 mm

25 X 2.65 B-90

N/A
119070

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 25.00 mm

25.8 X 2.65 B-70

N/A
119071

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 25.80 mm

25.8 X 2.65 B-90

N/A
119072

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 25.80 mm

26.5 X 2.66 B-70

N/A
119073

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.66 mm

N/A 70

N/A 26.50 mm

26.5 X 2.66 B-90

N/A
119074

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.66 mm

N/A 90

N/A 26.50 mm

28x2.65B70

N/A
119075

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 28.00 mm

28 X 2.65 B-90

N/A
119076

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 28.00 mm

30x2.65B70

N/A
119077

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 30.00 mm

30 X 2.65 B-90

N/A
119078

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 30.00 mm

31.5x2.65B70

N/A
119079

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 31.50 mm

31.5 X 2.65 B-90

N/A
119080

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 31.50 mm

32.5x2.65B70

N/A
119081

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 32.50 mm

32.5 X 2.65 B-90

N/A
119082

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 32.50 mm

33.5x2.65B70

N/A
119083

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 33.50 mm

33.5 X 2.65 B-90

N/A
119084

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 33.50 mm

34.5x2.65B70

N/A
119085

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 34.50 mm

34.5 X 2.65 B-90

N/A
119086

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 34.50 mm

35.5x2.65B70

N/A
119087

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 35.50 mm

35.5 X 2.65 B-90

N/A
119088

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 35.50 mm

36.5x2.65B70

N/A
119089

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 70

N/A 36.50 mm

36.5 X 2.65 B-90

N/A
119090

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.65 mm

N/A 90

N/A 36.50 mm