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
59x2.00B70	N/A 118129	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 59.00 mm
59 X 2 B-90	N/A 118130	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 59.00 mm
59.5x3.00B70	N/A 118131	N/A Metric Standard O-Ring	N/A Buna	N/A S60	N/A 2.00 mm	N/A 70	N/A 59.50 mm
59.5 X 2 B-90	N/A 118132	N/A Metric Standard O-Ring	N/A Buna	N/A S60	N/A 2.00 mm	N/A 90	N/A 59.50 mm
60x2.00B70	N/A 118133	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 60.00 mm
60 X 2 B-90	N/A 118134	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 60.00 mm
61x2.00B70	N/A 118135	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 61.00 mm
61 X 2 B-90	N/A 118136	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 61.00 mm
62x2.00B70	N/A 118137	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 62.00 mm
62 X 2 B-90	N/A 118138	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 62.00 mm
62.5 X 2 B-70	N/A 118139	N/A Metric Standard O-Ring	N/A Buna	N/A S63	N/A 2.00 mm	N/A 70	N/A 62.50 mm
62.5 X 2 B-90	N/A 118140	N/A Metric Standard O-Ring	N/A Buna	N/A S63	N/A 2.00 mm	N/A 90	N/A 62.50 mm
63x2.00B70	N/A 118141	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 63.00 mm
63 X 2 B-90	N/A 118142	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 63.00 mm
64x2.00B70	N/A 118143	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 64.00 mm
64 X 2 B-90	N/A 118144	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 64.00 mm
64.5x3.00B70	N/A 118145	N/A Metric Standard O-Ring	N/A Buna	N/A S65	N/A 2.00 mm	N/A 70	N/A 64.50 mm
64.5 X 2 B-90	N/A 118146	N/A Metric Standard O-Ring	N/A Buna	N/A S65	N/A 2.00 mm	N/A 90	N/A 64.50 mm
65x2.00B70	N/A 118147	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 65.00 mm
65 X 2 B-90	N/A 118148	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 65.00 mm
66x2.00B70	N/A 118149	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 66.00 mm
66 X 2 B-90	N/A 118150	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 90	N/A 66.00 mm
66.5 X 2 B-70	N/A 118151	N/A Metric Standard O-Ring	N/A Buna	N/A S67	N/A 2.00 mm	N/A 70	N/A 66.50 mm
66.5 X 2 B-90	N/A 118152	N/A Metric Standard O-Ring	N/A Buna	N/A S67	N/A 2.00 mm	N/A 90	N/A 66.50 mm
67x2.00B70	N/A 118153	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 2.00 mm	N/A 70	N/A 67.00 mm

N/A
118129

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 59.00 mm

59 X 2 B-90

N/A
118130

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 59.00 mm

59.5x3.00B70

N/A
118131

N/A Metric Standard O-Ring

N/A Buna

N/A S60

N/A 2.00 mm

N/A 70

N/A 59.50 mm

59.5 X 2 B-90

N/A
118132

N/A Metric Standard O-Ring

N/A Buna

N/A S60

N/A 2.00 mm

N/A 90

N/A 59.50 mm

60x2.00B70

N/A
118133

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 60.00 mm

60 X 2 B-90

N/A
118134

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 60.00 mm

61x2.00B70

N/A
118135

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 61.00 mm

61 X 2 B-90

N/A
118136

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 61.00 mm

62x2.00B70

N/A
118137

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 62.00 mm

62 X 2 B-90

N/A
118138

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 62.00 mm

62.5 X 2 B-70

N/A
118139

N/A Metric Standard O-Ring

N/A Buna

N/A S63

N/A 2.00 mm

N/A 70

N/A 62.50 mm

62.5 X 2 B-90

N/A
118140

N/A Metric Standard O-Ring

N/A Buna

N/A S63

N/A 2.00 mm

N/A 90

N/A 62.50 mm

63x2.00B70

N/A
118141

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 63.00 mm

63 X 2 B-90

N/A
118142

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 63.00 mm

64x2.00B70

N/A
118143

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 64.00 mm

64 X 2 B-90

N/A
118144

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 64.00 mm

64.5x3.00B70

N/A
118145

N/A Metric Standard O-Ring

N/A Buna

N/A S65

N/A 2.00 mm

N/A 70

N/A 64.50 mm

64.5 X 2 B-90

N/A
118146

N/A Metric Standard O-Ring

N/A Buna

N/A S65

N/A 2.00 mm

N/A 90

N/A 64.50 mm

65x2.00B70

N/A
118147

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 65.00 mm

65 X 2 B-90

N/A
118148

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 65.00 mm

66x2.00B70

N/A
118149

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 66.00 mm

66 X 2 B-90

N/A
118150

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 90

N/A 66.00 mm

66.5 X 2 B-70

N/A
118151

N/A Metric Standard O-Ring

N/A Buna

N/A S67

N/A 2.00 mm

N/A 70

N/A 66.50 mm

66.5 X 2 B-90

N/A
118152

N/A Metric Standard O-Ring

N/A Buna

N/A S67

N/A 2.00 mm

N/A 90

N/A 66.50 mm

67x2.00B70

N/A
118153

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 2.00 mm

N/A 70

N/A 67.00 mm