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 | 
                                                        
|---|---|---|---|---|---|---|---|---|---|
| BS204 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182991  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.359 in9.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -204 | Product Guides N/A Seal Guides | 
| BS204 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182992  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.359 in9.12 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -204 | Product Guides N/A Seal Guides | 
| BS203 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182993  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.296 in7.52 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -203 | Product Guides N/A Seal Guides | 
| BS203 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182994  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.296 in7.52 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -203 | Product Guides N/A Seal Guides | 
| BS202 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182995  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.234 in5.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -202 | Product Guides N/A Seal Guides | 
| BS202 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182996  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.234 in5.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -202 | Product Guides N/A Seal Guides | 
| BS201 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182997  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.171 in4.34 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -201 | Product Guides N/A Seal Guides | 
| BS201 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182998  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.171 in4.34 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -201 | Product Guides N/A Seal Guides | 
| BS178 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         182999  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.737 in247.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -178 | Product Guides N/A Seal Guides | 
| BS178 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183000  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 9.737 in247.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -178 | Product Guides N/A Seal Guides | 
| BS177 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183001  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.487 in240.97 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -177 | Product Guides N/A Seal Guides | 
| BS177 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183002  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 9.487 in240.97 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -177 | Product Guides N/A Seal Guides | 
| BS176 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183003  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 9.237 in234.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -176 | Product Guides N/A Seal Guides | 
| BS176 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183004  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 9.237 in234.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -176 | Product Guides N/A Seal Guides | 
| BS175 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183005  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.987 in228.27 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -175 | Product Guides N/A Seal Guides | 
| BS175 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183006  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 8.987 in228.27 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -175 | Product Guides N/A Seal Guides | 
| BS174 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183007  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.737 in221.92 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -174 | Product Guides N/A Seal Guides | 
| BS174 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183008  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 8.737 in221.92 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -174 | Product Guides N/A Seal Guides | 
| BS173 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183009  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.487 in215.57 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -173 | Product Guides N/A Seal Guides | 
| BS173 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183010  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 8.487 in215.57 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -173 | Product Guides N/A Seal Guides | 
| BS172 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183011  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 8.237 in209.22 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -172 | Product Guides N/A Seal Guides | 
| BS172 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183012  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 8.237 in209.22 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -172 | Product Guides N/A Seal Guides | 
| BS171 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183013  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 7.987 in202.87 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -171 | Product Guides N/A Seal Guides | 
| BS171 U-90 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183014  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 7.987 in202.87 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -171 | Product Guides N/A Seal Guides | 
| BS170 U-70 | 
                                    
                                        IntegrationID                                                    
 N/A                                                         183015  | 
                                Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 7.737 in196.52 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -170 | Product Guides N/A Seal Guides |