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 | 
                                                        
|---|---|---|---|---|---|---|---|---|
| 40.94 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118937  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 130 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 40.94 mm | Product Guides N/A Seal Guides | 
| 40.94 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118938  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 130 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 40.94 mm | Product Guides N/A Seal Guides | 
| 42.52 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118939  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 131 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 42.52 mm | Product Guides N/A Seal Guides | 
| 42.52 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118940  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 131 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 42.52 mm | Product Guides N/A Seal Guides | 
| 44.12 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118941  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 132 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 44.12 mm | Product Guides N/A Seal Guides | 
| 44.12 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118942  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 132 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 44.12 mm | Product Guides N/A Seal Guides | 
| 45.69 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118943  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 133 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 45.69 mm | Product Guides N/A Seal Guides | 
| 45.69 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118944  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 133 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 45.69 mm | Product Guides N/A Seal Guides | 
| 47.29 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118945  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 134 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 47.29 mm | Product Guides N/A Seal Guides | 
| 47.29 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118946  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 134 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 47.29 mm | Product Guides N/A Seal Guides | 
| 48.9 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118947  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 135 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 48.90 mm | Product Guides N/A Seal Guides | 
| 48.9 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118948  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 135 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 48.90 mm | Product Guides N/A Seal Guides | 
| 50.47 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118949  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 136 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 50.47 mm | Product Guides N/A Seal Guides | 
| 50.47 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118950  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 136 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 50.47 mm | Product Guides N/A Seal Guides | 
| 52.07 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118951  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 137 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 52.07 mm | Product Guides N/A Seal Guides | 
| 52.07 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118952  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 137 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 52.07 mm | Product Guides N/A Seal Guides | 
| 53.64 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118953  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 138 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 53.64 mm | Product Guides N/A Seal Guides | 
| 53.64 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118954  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 138 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 53.64 mm | Product Guides N/A Seal Guides | 
| 55.25 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118955  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 139 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 55.25 mm | Product Guides N/A Seal Guides | 
| 55.25 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118956  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 139 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 55.25 mm | Product Guides N/A Seal Guides | 
| 56.82 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118957  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 140 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 56.82 mm | Product Guides N/A Seal Guides | 
| 56.82 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118958  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 140 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 56.82 mm | Product Guides N/A Seal Guides | 
| 58.42 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118959  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 141 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 58.42 mm | Product Guides N/A Seal Guides | 
| 58.42 X 2.62 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118960  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 141 | Cross Section Width N/A 2.62 mm | Durometer N/A 90 | Inside Diameter N/A 58.42 mm | Product Guides N/A Seal Guides | 
| 59.99 X 2.62 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         118961  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A 142 | Cross Section Width N/A 2.62 mm | Durometer N/A 70 | Inside Diameter N/A 59.99 mm | Product Guides N/A Seal Guides | 
 
