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
87 X 2 B-90	N/A 118204	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 87.00 mm
88x2.00B70	N/A 118205	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 88.00 mm
88 X 2 B-90	N/A 118206	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 88.00 mm
89x2.00B70	N/A 118207	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 89.00 mm
89 X 2 B-90	N/A 118208	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 89.00 mm
89.5x3.00B70	N/A 118209	N/A Metric Standard O-Ring	N/A Buna	N/A S90	N/A 2.00 mm	N/A 70	N/A 89.50 mm
89.5 X 2 B-90	N/A 118210	N/A Metric Standard O-Ring	N/A Buna	N/A S90	N/A 2.00 mm	N/A 90	N/A 89.50 mm
90x2.00B70	N/A 118211	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 90.00 mm
90 X 2 B-90	N/A 118212	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 90.00 mm
91x2.00B70	N/A 118213	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 91.00 mm
91 X 2 B-90	N/A 118214	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 91.00 mm
92x2.00B70	N/A 118215	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 92.00 mm
92 X 2 B-90	N/A 118216	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 92.00 mm
93x2.00B70	N/A 118217	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 93.00 mm
93 X 2 B-90	N/A 118218	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 93.00 mm
94x2.00B70	N/A 118219	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 94.00 mm
94 X 2 B-90	N/A 118220	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 94.00 mm
94.5x3.00B70	N/A 118221	N/A Metric Standard O-Ring	N/A Buna	N/A S95	N/A 2.00 mm	N/A 70	N/A 94.50 mm
94.5 X 2 B-90	N/A 118222	N/A Metric Standard O-Ring	N/A Buna	N/A S95	N/A 2.00 mm	N/A 90	N/A 94.50 mm
95x2.00B70	N/A 118223	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 95.00 mm
95 X 2 B-90	N/A 118224	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 95.00 mm
96x2.00B70	N/A 118225	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 96.00 mm
96 X 2 B-90	N/A 118226	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 96.00 mm
97x2.00B70	N/A 118227	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 97.00 mm
97 X 2 B-90	N/A 118228	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 97.00 mm

N/A
118204

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 87.00 mm

88x2.00B70

N/A
118205

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 88.00 mm

88 X 2 B-90

N/A
118206

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 88.00 mm

89x2.00B70

N/A
118207

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 89.00 mm

89 X 2 B-90

N/A
118208

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 89.00 mm

89.5x3.00B70

N/A
118209

N/A Metric Standard O-Ring

N/A Buna

N/A S90

N/A 2.00 mm

N/A 70

N/A 89.50 mm

89.5 X 2 B-90

N/A
118210

N/A Metric Standard O-Ring

N/A Buna

N/A S90

N/A 2.00 mm

N/A 90

N/A 89.50 mm

90x2.00B70

N/A
118211

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 90.00 mm

90 X 2 B-90

N/A
118212

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 90.00 mm

91x2.00B70

N/A
118213

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 91.00 mm

91 X 2 B-90

N/A
118214

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 91.00 mm

92x2.00B70

N/A
118215

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 92.00 mm

92 X 2 B-90

N/A
118216

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 92.00 mm

93x2.00B70

N/A
118217

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 93.00 mm

93 X 2 B-90

N/A
118218

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 93.00 mm

94x2.00B70

N/A
118219

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 94.00 mm

94 X 2 B-90

N/A
118220

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 94.00 mm

94.5x3.00B70

N/A
118221

N/A Metric Standard O-Ring

N/A Buna

N/A S95

N/A 2.00 mm

N/A 70

N/A 94.50 mm

94.5 X 2 B-90

N/A
118222

N/A Metric Standard O-Ring

N/A Buna

N/A S95

N/A 2.00 mm

N/A 90

N/A 94.50 mm

95x2.00B70

N/A
118223

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 95.00 mm

95 X 2 B-90

N/A
118224

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 95.00 mm

96x2.00B70

N/A
118225

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 96.00 mm

96 X 2 B-90

N/A
118226

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 96.00 mm

97x2.00B70

N/A
118227

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 97.00 mm

97 X 2 B-90

N/A
118228

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 97.00 mm