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
98 X 1.5 B-90	N/A 117546	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 98.00 mm
99 X 1.5 B-70	N/A 117547	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 99.00 mm
99 X 1.5 B-90	N/A 117548	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 99.00 mm
100 X 1.5 B-70	N/A 117549	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 70	N/A 100.00 mm
100 X 1.5 B-90	N/A 117550	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.50 mm	N/A 90	N/A 100.00 mm
1.42 X 1.52 B-70	N/A 117551	N/A Metric Standard O-Ring	N/A Buna	N/A 3	N/A 1.52 mm	N/A 70	N/A 1.42 mm
1.42 X 1.52 B-90	N/A 117552	N/A Metric Standard O-Ring	N/A Buna	N/A 3	N/A 1.52 mm	N/A 90	N/A 1.42 mm
2.2 X 1.6 B-70	N/A 117553	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 2.20 mm
2.2 X 1.6 B-90	N/A 117554	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 2.20 mm
2.75 X 1.6 B-70	N/A 117555	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 2.75 mm
2.75 X 1.6 B-90	N/A 117556	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 2.75 mm
2.8 X 1.6 B-70	N/A 117557	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 2.80 mm
2.8 X 1.6 B-90	N/A 117558	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 2.80 mm
3.1 X 1.6 B-70	N/A 117559	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 3.10 mm
3.1 X 1.6 B-90	N/A 117560	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 3.10 mm
3.2 X 1.6 B-70	N/A 117561	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 3.20 mm
3.2 X 1.6 B-90	N/A 117562	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 3.20 mm
3.7 X 1.6 B-70	N/A 117563	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 3.70 mm
3.7 X 1.6 B-90	N/A 117564	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 3.70 mm
4.1 X 1.6 B-70	N/A 117565	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 4.10 mm
4.1 X 1.6 B-90	N/A 117566	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 4.10 mm
4.7 X 1.6 B-70	N/A 117567	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 4.70 mm
4.7 X 1.6 B-90	N/A 117568	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 4.70 mm
5 X 1.6 B-70	N/A 117569	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 70	N/A 5.00 mm
5 X 1.6 B-90	N/A 117570	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.60 mm	N/A 90	N/A 5.00 mm

N/A
117546

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 98.00 mm

99 X 1.5 B-70

N/A
117547

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 99.00 mm

99 X 1.5 B-90

N/A
117548

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 99.00 mm

100 X 1.5 B-70

N/A
117549

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 70

N/A 100.00 mm

100 X 1.5 B-90

N/A
117550

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.50 mm

N/A 90

N/A 100.00 mm

1.42 X 1.52 B-70

N/A
117551

N/A Metric Standard O-Ring

N/A Buna

N/A 3

N/A 1.52 mm

N/A 70

N/A 1.42 mm

1.42 X 1.52 B-90

N/A
117552

N/A Metric Standard O-Ring

N/A Buna

N/A 3

N/A 1.52 mm

N/A 90

N/A 1.42 mm

2.2 X 1.6 B-70

N/A
117553

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 2.20 mm

2.2 X 1.6 B-90

N/A
117554

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 2.20 mm

2.75 X 1.6 B-70

N/A
117555

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 2.75 mm

2.75 X 1.6 B-90

N/A
117556

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 2.75 mm

2.8 X 1.6 B-70

N/A
117557

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 2.80 mm

2.8 X 1.6 B-90

N/A
117558

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 2.80 mm

3.1 X 1.6 B-70

N/A
117559

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 3.10 mm

3.1 X 1.6 B-90

N/A
117560

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 3.10 mm

3.2 X 1.6 B-70

N/A
117561

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 3.20 mm

3.2 X 1.6 B-90

N/A
117562

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 3.20 mm

3.7 X 1.6 B-70

N/A
117563

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 3.70 mm

3.7 X 1.6 B-90

N/A
117564

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 3.70 mm

4.1 X 1.6 B-70

N/A
117565

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 4.10 mm

4.1 X 1.6 B-90

N/A
117566

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 4.10 mm

4.7 X 1.6 B-70

N/A
117567

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 4.70 mm

4.7 X 1.6 B-90

N/A
117568

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 4.70 mm

5 X 1.6 B-70

N/A
117569

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 70

N/A 5.00 mm

5 X 1.6 B-90

N/A
117570

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.60 mm

N/A 90

N/A 5.00 mm