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
86x5.00B70	N/A 122701	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 86.00 mm	N/A Seal Guides
86 X 5 B-90	N/A 122702	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 86.00 mm	N/A Seal Guides
87x5.00B70	N/A 122703	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 87.00 mm	N/A Seal Guides
87 X 5 B-90	N/A 122704	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 87.00 mm	N/A Seal Guides
88x5.00B70	N/A 122705	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 88.00 mm	N/A Seal Guides
88 X 5 B-90	N/A 122706	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 88.00 mm	N/A Seal Guides
89x5.00B70	N/A 122707	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 89.00 mm	N/A Seal Guides
89 X 5 B-90	N/A 122708	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 89.00 mm	N/A Seal Guides
90x5.00B70	N/A 122709	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 90.00 mm	N/A Seal Guides
90 X 5 B-90	N/A 122710	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 90.00 mm	N/A Seal Guides
91x5.00B70	N/A 122711	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 91.00 mm	N/A Seal Guides
91 X 5 B-90	N/A 122712	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 91.00 mm	N/A Seal Guides
92x5.00B70	N/A 122713	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 92.00 mm	N/A Seal Guides
92 X 5 B-90	N/A 122714	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 92.00 mm	N/A Seal Guides
93x5.00B70	N/A 122715	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 93.00 mm	N/A Seal Guides
93 X 5 B-90	N/A 122716	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 93.00 mm	N/A Seal Guides
94x5.00B70	N/A 122717	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 94.00 mm	N/A Seal Guides
94 X 5 B-90	N/A 122718	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 94.00 mm	N/A Seal Guides
95x5.00B70	N/A 122719	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 95.00 mm	N/A Seal Guides
95 X 5 B-90	N/A 122720	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 95.00 mm	N/A Seal Guides
96x5.00B70	N/A 122721	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 96.00 mm	N/A Seal Guides
96 X 5 B-90	N/A 122722	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 96.00 mm	N/A Seal Guides
97x5.00B70	N/A 122723	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 97.00 mm	N/A Seal Guides
97 X 5 B-90	N/A 122724	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 90	N/A 97.00 mm	N/A Seal Guides
98x5.00B70	N/A 122725	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 5.00 mm	N/A 70	N/A 98.00 mm	N/A Seal Guides

N/A
122701

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 86.00 mm

N/A Seal Guides

86 X 5 B-90

N/A
122702

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 86.00 mm

N/A Seal Guides

87x5.00B70

N/A
122703

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 87.00 mm

N/A Seal Guides

87 X 5 B-90

N/A
122704

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 87.00 mm

N/A Seal Guides

88x5.00B70

N/A
122705

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 88.00 mm

N/A Seal Guides

88 X 5 B-90

N/A
122706

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 88.00 mm

N/A Seal Guides

89x5.00B70

N/A
122707

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 89.00 mm

N/A Seal Guides

89 X 5 B-90

N/A
122708

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 89.00 mm

N/A Seal Guides

90x5.00B70

N/A
122709

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 90.00 mm

N/A Seal Guides

90 X 5 B-90

N/A
122710

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 90.00 mm

N/A Seal Guides

91x5.00B70

N/A
122711

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 91.00 mm

N/A Seal Guides

91 X 5 B-90

N/A
122712

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 91.00 mm

N/A Seal Guides

92x5.00B70

N/A
122713

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 92.00 mm

N/A Seal Guides

92 X 5 B-90

N/A
122714

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 92.00 mm

N/A Seal Guides

93x5.00B70

N/A
122715

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 93.00 mm

N/A Seal Guides

93 X 5 B-90

N/A
122716

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 93.00 mm

N/A Seal Guides

94x5.00B70

N/A
122717

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 94.00 mm

N/A Seal Guides

94 X 5 B-90

N/A
122718

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 94.00 mm

N/A Seal Guides

95x5.00B70

N/A
122719

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 95.00 mm

N/A Seal Guides

95 X 5 B-90

N/A
122720

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 95.00 mm

N/A Seal Guides

96x5.00B70

N/A
122721

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 96.00 mm

N/A Seal Guides

96 X 5 B-90

N/A
122722

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 96.00 mm

N/A Seal Guides

97x5.00B70

N/A
122723

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 97.00 mm

N/A Seal Guides

97 X 5 B-90

N/A
122724

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 90

N/A 97.00 mm

N/A Seal Guides

98x5.00B70

N/A
122725

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 5.00 mm

N/A 70

N/A 98.00 mm

N/A Seal Guides