
OneMonroe’s Metric Polyurethane O-Rings are designed for maximum durability and exceptional sealing performance in a wide range of applications. Crafted from high-quality polyurethane, these O-rings offer outstanding resistance to abrasion, chemicals, and high-pressure environments, making them ideal for industries that demand both reliability and longevity. Whether used in hydraulics, pneumatics, or mechanical assemblies, OneMonroe’s Metric Polyurethane O-Rings deliver dependable sealing solutions that withstand tough conditions, ensuring your systems operate smoothly and efficiently.
Our metric O-rings are available in various sizes to provide versatility and precision for any engineering or industrial requirement. These O-rings are specifically designed to provide a reliable seal for metric-based equipment, allowing for exact fitment and minimal leakage. The superior strength and elasticity of polyurethane make these O-rings more durable than traditional rubber alternatives, significantly extending the service life and reducing maintenance downtime. With their exceptional chemical and temperature resistance, OneMonroe Metric Polyurethane O-Rings are a trusted choice for applications ranging from automotive systems to heavy machinery and beyond.
OneMonroe is committed to providing premium-quality products that meet the rigorous demands of our clients. Our polyurethane O-rings undergo stringent quality checks and are manufactured to exact specifications, ensuring reliable performance in diverse environments. As a trusted provider of industrial and engineering components, we support our clients with expert guidance and a wide selection of high-quality sealing solutions. When you choose OneMonroe Metric Polyurethane O-Rings, you’re investing in dependable performance, longevity, and efficiency for all your sealing needs.
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 | 
                                            Quantity | 
|---|---|---|---|---|---|---|---|---|---|
| 125 X 3.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137811  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.50 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 3.55 U-70 | 
                                    
                                                                                            
 N/A                                                         137812  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.55 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 4 U-70 | 
                                    
                                                                                            
 N/A                                                         137813  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 4.00 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 5 U-70 | 
                                    
                                                                                            
 N/A                                                         137814  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 5.00 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 5.3 U-70 | 
                                    
                                                                                            
 N/A                                                         137815  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 5.30 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 6 U-70 | 
                                    
                                                                                            
 N/A                                                         137816  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 6.00 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125 X 8.3 U-70 | 
                                    
                                                                                            
 N/A                                                         137817  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 8.30 mm | N/A 70 | N/A 125.00 mm | N/A Seal Guides | |
| 125.3 X 5.7 U-70 | 
                                    
                                                                                            
 N/A                                                         137818  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 5.70 mm | N/A 70 | N/A 125.30 mm | N/A Seal Guides | |
| 125.6 X 2 U-70 | 
                                    
                                                                                            
 N/A                                                         137819  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 2.00 mm | N/A 70 | N/A 125.60 mm | N/A Seal Guides | |
| 126 X 2.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137820  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 2.50 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 3 U-70 | 
                                    
                                                                                            
 N/A                                                         137821  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.00 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 3.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137822  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.50 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 4 U-70 | 
                                    
                                                                                            
 N/A                                                         137823  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 4.00 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 4.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137824  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 4.50 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 5 U-70 | 
                                    
                                                                                            
 N/A                                                         137825  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 5.00 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126 X 6 U-70 | 
                                    
                                                                                            
 N/A                                                         137826  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 6.00 mm | N/A 70 | N/A 126.00 mm | N/A Seal Guides | |
| 126.5 X 3 U-70 | 
                                    
                                                                                            
 N/A                                                         137829  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.00 mm | N/A 70 | N/A 126.50 mm | N/A Seal Guides | |
| 127 X 2.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137833  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 2.50 mm | N/A 70 | N/A 127.00 mm | N/A Seal Guides | |
| 127 X 3 U-70 | 
                                    
                                                                                            
 N/A                                                         137834  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.00 mm | N/A 70 | N/A 127.00 mm | N/A Seal Guides | |
| 127 X 3.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137835  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.50 mm | N/A 70 | N/A 127.00 mm | N/A Seal Guides | |
| 127 X 4 U-70 | 
                                    
                                                                                            
 N/A                                                         137836  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 4.00 mm | N/A 70 | N/A 127.00 mm | N/A Seal Guides | |
| 127 X 5 U-70 | 
                                    
                                                                                            
 N/A                                                         137837  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 5.00 mm | N/A 70 | N/A 127.00 mm | N/A Seal Guides | |
| 128 X 2.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137839  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 2.50 mm | N/A 70 | N/A 128.00 mm | N/A Seal Guides | |
| 128 X 3 U-70 | 
                                    
                                                                                            
 N/A                                                         137840  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.00 mm | N/A 70 | N/A 128.00 mm | N/A Seal Guides | |
| 128 X 3.5 U-70 | 
                                    
                                                                                            
 N/A                                                         137841  | 
                                N/A Metric Standard O-Ring | N/A Polyurethane | N/A | N/A 3.50 mm | N/A 70 | N/A 128.00 mm | N/A Seal Guides |