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
98x2.00B70	N/A 118229	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 98.00 mm
98 X 2 B-90	N/A 118230	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 98.00 mm
99x2.00B70	N/A 118231	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 99.00 mm
99 X 2 B-90	N/A 118232	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 99.00 mm
99.5x3.00B70	N/A 118233	N/A Metric Standard O-Ring	N/A Buna	N/A S100	N/A 2.00 mm	N/A 70	N/A 99.50 mm
99.5 X 2 B-90	N/A 118234	N/A Metric Standard O-Ring	N/A Buna	N/A S100	N/A 2.00 mm	N/A 90	N/A 99.50 mm
100x2.00B70	N/A 118235	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 100.00 mm
100 X 2 B-90	N/A 118236	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 100.00 mm
102x2.00B70	N/A 118237	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 102.00 mm
102 X 2 B-90	N/A 118238	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 102.00 mm
104.5 X 2 B-70	N/A 118239	N/A Metric Standard O-Ring	N/A Buna	N/A S105	N/A 2.00 mm	N/A 70	N/A 104.50 mm
104.5 X 2 B-90	N/A 118240	N/A Metric Standard O-Ring	N/A Buna	N/A S105	N/A 2.00 mm	N/A 90	N/A 104.50 mm
105x2.00B70	N/A 118241	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 105.00 mm
105 X 2 B-90	N/A 118242	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 105.00 mm
109x2.00B70	N/A 118243	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 109.00 mm
109 X 2 B-90	N/A 118244	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 109.00 mm
109.5 X 2 B-70	N/A 118245	N/A Metric Standard O-Ring	N/A Buna	N/A S110	N/A 2.00 mm	N/A 70	N/A 109.50 mm
109.5 X 2 B-90	N/A 118246	N/A Metric Standard O-Ring	N/A Buna	N/A S110	N/A 2.00 mm	N/A 90	N/A 109.50 mm
110x2.00B70	N/A 118247	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 110.00 mm
110 X 2 B-90	N/A 118248	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 110.00 mm
111.5 X 2 B-70	N/A 118249	N/A Metric Standard O-Ring	N/A Buna	N/A S112	N/A 2.00 mm	N/A 70	N/A 111.50 mm
111.5 X 2 B-90	N/A 118250	N/A Metric Standard O-Ring	N/A Buna	N/A S112	N/A 2.00 mm	N/A 90	N/A 111.50 mm
114.5 X 2 B-70	N/A 118251	N/A Metric Standard O-Ring	N/A Buna	N/A S115	N/A 2.00 mm	N/A 70	N/A 114.50 mm
114.5 X 2 B-90	N/A 118252	N/A Metric Standard O-Ring	N/A Buna	N/A S115	N/A 2.00 mm	N/A 90	N/A 114.50 mm
115x2.00B70	N/A 118253	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 115.00 mm

N/A
118229

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 98.00 mm

98 X 2 B-90

N/A
118230

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 98.00 mm

99x2.00B70

N/A
118231

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 99.00 mm

99 X 2 B-90

N/A
118232

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 99.00 mm

99.5x3.00B70

N/A
118233

N/A Metric Standard O-Ring

N/A Buna

N/A S100

N/A 2.00 mm

N/A 70

N/A 99.50 mm

99.5 X 2 B-90

N/A
118234

N/A Metric Standard O-Ring

N/A Buna

N/A S100

N/A 2.00 mm

N/A 90

N/A 99.50 mm

100x2.00B70

N/A
118235

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 100.00 mm

100 X 2 B-90

N/A
118236

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 100.00 mm

102x2.00B70

N/A
118237

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 102.00 mm

102 X 2 B-90

N/A
118238

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 102.00 mm

104.5 X 2 B-70

N/A
118239

N/A Metric Standard O-Ring

N/A Buna

N/A S105

N/A 2.00 mm

N/A 70

N/A 104.50 mm

104.5 X 2 B-90

N/A
118240

N/A Metric Standard O-Ring

N/A Buna

N/A S105

N/A 2.00 mm

N/A 90

N/A 104.50 mm

105x2.00B70

N/A
118241

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 105.00 mm

105 X 2 B-90

N/A
118242

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 105.00 mm

109x2.00B70

N/A
118243

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 109.00 mm

109 X 2 B-90

N/A
118244

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 109.00 mm

109.5 X 2 B-70

N/A
118245

N/A Metric Standard O-Ring

N/A Buna

N/A S110

N/A 2.00 mm

N/A 70

N/A 109.50 mm

109.5 X 2 B-90

N/A
118246

N/A Metric Standard O-Ring

N/A Buna

N/A S110

N/A 2.00 mm

N/A 90

N/A 109.50 mm

110x2.00B70

N/A
118247

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 110.00 mm

110 X 2 B-90

N/A
118248

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 110.00 mm

111.5 X 2 B-70

N/A
118249

N/A Metric Standard O-Ring

N/A Buna

N/A S112

N/A 2.00 mm

N/A 70

N/A 111.50 mm

111.5 X 2 B-90

N/A
118250

N/A Metric Standard O-Ring

N/A Buna

N/A S112

N/A 2.00 mm

N/A 90

N/A 111.50 mm

114.5 X 2 B-70

N/A
118251

N/A Metric Standard O-Ring

N/A Buna

N/A S115

N/A 2.00 mm

N/A 70

N/A 114.50 mm

114.5 X 2 B-90

N/A
118252

N/A Metric Standard O-Ring

N/A Buna

N/A S115

N/A 2.00 mm

N/A 90

N/A 114.50 mm

115x2.00B70

N/A
118253

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 115.00 mm