
OneMonroe Polyurethane O-Rings are designed for applications that demand superior wear resistance, flexibility, and resilience. Constructed from high-quality polyurethane material, these O-rings offer an excellent balance between strength and elasticity, making them perfect for heavy-duty applications where traditional rubber rings may fail. Polyurethane is renowned for its exceptional tear resistance, abrasion tolerance, and longevity, enabling OneMonroe O-Rings to deliver reliable performance even in challenging environments. From industrial machinery and automotive components to hydraulic and pneumatic systems, our polyurethane O-rings provide a dependable seal in numerous applications.
These O-rings are manufactured to precise standards, ensuring a consistent and reliable fit for various equipment and machinery. Polyurethane material is particularly well-suited for sealing applications that encounter high-pressure or high-vibration conditions, as it is less prone to deformation and degradation over time. Available in a broad range of sizes, OneMonroe Polyurethane O-Rings meet diverse requirements, providing dependable sealing solutions that minimize maintenance and downtime. Our commitment to quality means each O-ring undergoes rigorous testing to ensure optimal performance, whether in low-friction, static sealing, or dynamic, high-motion environments.
At Monroe, we prioritize durability, efficiency, and adaptability in every product we offer. Our polyurethane O-rings are specifically engineered for durability and longevity, reducing the need for frequent replacements. For industries where reliability is essential, OneMonroe Polyurethane O-Rings provide a practical and cost-effective solution that withstands the rigors of daily operation. Whether you need to upgrade an existing system or are working on a new project, OneMonroe offers the high-performance polyurethane O-rings you can count on to keep your equipment running smoothly and effectively.
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 Section Width | 
                        
                            Durometer | 
                        
                            Inside Diameter | 
                        
                            CSW Tolerance | 
                        
                            BS Number | 
                        
                            Product Guides | 
                                            Quantity | 
|---|---|---|---|---|---|---|---|---|---|---|
| BS254 U-70 | 
                                    
                                                                                            
 N/A                                                         182891  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 5.484 in139.29 mm | N/A 0.004 in0.10 mm | N/A -254 | N/A Seal Guides | |
| BS254 U-90 | 
                                    
                                                                                            
 N/A                                                         182892  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 5.484 in139.29 mm | N/A 0.004 in0.10 mm | N/A -254 | N/A Seal Guides | |
| BS253 U-70 | 
                                    
                                                                                            
 N/A                                                         182893  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 5.359 in136.12 mm | N/A 0.004 in0.10 mm | N/A -253 | N/A Seal Guides | |
| BS253 U-90 | 
                                    
                                                                                            
 N/A                                                         182894  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 5.359 in136.12 mm | N/A 0.004 in0.10 mm | N/A -253 | N/A Seal Guides | |
| BS252 U-70 | 
                                    
                                                                                            
 N/A                                                         182895  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 5.234 in132.94 mm | N/A 0.004 in0.10 mm | N/A -252 | N/A Seal Guides | |
| BS252 U-90 | 
                                    
                                                                                            
 N/A                                                         182896  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 5.234 in132.94 mm | N/A 0.004 in0.10 mm | N/A -252 | N/A Seal Guides | |
| BS251 U-70 | 
                                    
                                                                                            
 N/A                                                         182897  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 5.109 in129.77 mm | N/A 0.004 in0.10 mm | N/A -251 | N/A Seal Guides | |
| BS251 U-90 | 
                                    
                                                                                            
 N/A                                                         182898  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 5.109 in129.77 mm | N/A 0.004 in0.10 mm | N/A -251 | N/A Seal Guides | |
| BS250 U-70 | 
                                    
                                                                                            
 N/A                                                         182899  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.984 in126.59 mm | N/A 0.004 in0.10 mm | N/A -250 | N/A Seal Guides | |
| BS250 U-90 | 
                                    
                                                                                            
 N/A                                                         182900  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.984 in126.59 mm | N/A 0.004 in0.10 mm | N/A -250 | N/A Seal Guides | |
| BS249 U-70 | 
                                    
                                                                                            
 N/A                                                         182901  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.859 in123.42 mm | N/A 0.004 in0.10 mm | N/A -249 | N/A Seal Guides | |
| BS249 U-90 | 
                                    
                                                                                            
 N/A                                                         182902  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.859 in123.42 mm | N/A 0.004 in0.10 mm | N/A -249 | N/A Seal Guides | |
| BS248 U-70 | 
                                    
                                                                                            
 N/A                                                         182903  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.734 in120.24 mm | N/A 0.004 in0.10 mm | N/A -248 | N/A Seal Guides | |
| BS248 U-90 | 
                                    
                                                                                            
 N/A                                                         182904  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.734 in120.24 mm | N/A 0.004 in0.10 mm | N/A -248 | N/A Seal Guides | |
| BS247 U-70 | 
                                    
                                                                                            
 N/A                                                         182905  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.609 in117.07 mm | N/A 0.004 in0.10 mm | N/A -247 | N/A Seal Guides | |
| BS247 U-90 | 
                                    
                                                                                            
 N/A                                                         182906  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.609 in117.07 mm | N/A 0.004 in0.10 mm | N/A -247 | N/A Seal Guides | |
| BS246 U-70 | 
                                    
                                                                                            
 N/A                                                         182907  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.484 in113.89 mm | N/A 0.004 in0.10 mm | N/A -246 | N/A Seal Guides | |
| BS246 U-90 | 
                                    
                                                                                            
 N/A                                                         182908  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.484 in113.89 mm | N/A 0.004 in0.10 mm | N/A -246 | N/A Seal Guides | |
| BS245 U-70 | 
                                    
                                                                                            
 N/A                                                         182909  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.359 in110.72 mm | N/A 0.004 in0.10 mm | N/A -245 | N/A Seal Guides | |
| BS245 U-90 | 
                                    
                                                                                            
 N/A                                                         182910  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.359 in110.72 mm | N/A 0.004 in0.10 mm | N/A -245 | N/A Seal Guides | |
| BS244 U-70 | 
                                    
                                                                                            
 N/A                                                         182911  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.234 in107.54 mm | N/A 0.004 in0.10 mm | N/A -244 | N/A Seal Guides | |
| BS244 U-90 | 
                                    
                                                                                            
 N/A                                                         182912  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.234 in107.54 mm | N/A 0.004 in0.10 mm | N/A -244 | N/A Seal Guides | |
| BS243 U-70 | 
                                    
                                                                                            
 N/A                                                         182913  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 4.109 in104.37 mm | N/A 0.004 in0.10 mm | N/A -243 | N/A Seal Guides | |
| BS243 U-90 | 
                                    
                                                                                            
 N/A                                                         182914  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 90 | N/A 4.109 in104.37 mm | N/A 0.004 in0.10 mm | N/A -243 | N/A Seal Guides | |
| BS242 U-70 | 
                                    
                                                                                            
 N/A                                                         182915  | 
                                N/A BS Standard O-Ring | N/A Polyurethane | N/A 0.139 in3.53 mm | N/A 70 | N/A 3.984 in101.19 mm | N/A 0.004 in0.10 mm | N/A -242 | N/A Seal Guides |