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 | 
                                                        
|---|---|---|---|---|---|---|---|---|
| 31.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117396  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 31.50 mm | Product Guides N/A Seal Guides | 
| 32 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117397  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 32.00 mm | Product Guides N/A Seal Guides | 
| 32 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117398  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 32.00 mm | Product Guides N/A Seal Guides | 
| 32.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117399  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 32.50 mm | Product Guides N/A Seal Guides | 
| 32.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117400  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 32.50 mm | Product Guides N/A Seal Guides | 
| 33 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117401  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 33.00 mm | Product Guides N/A Seal Guides | 
| 33 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117402  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 33.00 mm | Product Guides N/A Seal Guides | 
| 33.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117403  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 33.50 mm | Product Guides N/A Seal Guides | 
| 33.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117404  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 33.50 mm | Product Guides N/A Seal Guides | 
| 34 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117405  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 34.00 mm | Product Guides N/A Seal Guides | 
| 34 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117406  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 34.00 mm | Product Guides N/A Seal Guides | 
| 34.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117407  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 34.50 mm | Product Guides N/A Seal Guides | 
| 34.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117408  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 34.50 mm | Product Guides N/A Seal Guides | 
| 35 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117409  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 35.00 mm | Product Guides N/A Seal Guides | 
| 35 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117410  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 35.00 mm | Product Guides N/A Seal Guides | 
| 35.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117411  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 35.50 mm | Product Guides N/A Seal Guides | 
| 35.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117412  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 35.50 mm | Product Guides N/A Seal Guides | 
| 36 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117413  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 36.00 mm | Product Guides N/A Seal Guides | 
| 36 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117414  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 36.00 mm | Product Guides N/A Seal Guides | 
| 36.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117415  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 36.50 mm | Product Guides N/A Seal Guides | 
| 36.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117416  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 36.50 mm | Product Guides N/A Seal Guides | 
| 37 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117417  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 37.00 mm | Product Guides N/A Seal Guides | 
| 37 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117418  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 37.00 mm | Product Guides N/A Seal Guides | 
| 37.5 X 1.5 B-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117419  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 70 | Inside Diameter N/A 37.50 mm | Product Guides N/A Seal Guides | 
| 37.5 X 1.5 B-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         117420  | 
                                Type N/A Metric Standard O-Ring | Material N/A Buna | Cross Reference N/A | Cross Section Width N/A 1.50 mm | Durometer N/A 90 | Inside Diameter N/A 37.50 mm | Product Guides N/A Seal Guides | 
 
