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.
Cross Section Width (in)
Cross Section Width (mm)
Durometer
Inside Diameter (in)
Inside Diameter (mm)
| Item # | IntegrationID | Type | Material | Cross Section Width | Durometer | Inside Diameter | CSW Tolerance | BS Number | Product Guides | 
|---|---|---|---|---|---|---|---|---|---|
| BS643 U-90 | IntegrationID                                                    
 N/A 182466 | 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 3.299 in83.79 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -643 | Product Guides N/A Seal Guides | 
| BS642 U-70 | IntegrationID                                                    
 N/A 182467 | 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 3.174 in80.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -642 | Product Guides N/A Seal Guides | 
| BS642 U-90 | IntegrationID                                                    
 N/A 182468 | 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 3.174 in80.62 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -642 | Product Guides N/A Seal Guides | 
| BS641 U-70 | IntegrationID                                                    
 N/A 182469 | 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 3.049 in77.44 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -641 | Product Guides N/A Seal Guides | 
| BS641 U-90 | IntegrationID                                                    
 N/A 182470 | 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 3.049 in77.44 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -641 | Product Guides N/A Seal Guides | 
| BS640 U-70 | IntegrationID                                                    
 N/A 182471 | 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 2.924 in74.27 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -640 | Product Guides N/A Seal Guides | 
| BS640 U-90 | IntegrationID                                                    
 N/A 182472 | 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 2.924 in74.27 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -640 | Product Guides N/A Seal Guides | 
| BS628 U-70 | IntegrationID                                                    
 N/A 182473 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 70 | Inside Diameter N/A 6.563 in166.70 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -628 | Product Guides N/A Seal Guides | 
| BS628 U-90 | IntegrationID                                                    
 N/A 182474 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 90 | Inside Diameter N/A 6.563 in166.70 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -628 | Product Guides N/A Seal Guides | 
| BS627 U-70 | IntegrationID                                                    
 N/A 182475 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 70 | Inside Diameter N/A 6.281 in159.54 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -627 | Product Guides N/A Seal Guides | 
| BS627 U-90 | IntegrationID                                                    
 N/A 182476 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 90 | Inside Diameter N/A 6.281 in159.54 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -627 | Product Guides N/A Seal Guides | 
| BS626 U-70 | IntegrationID                                                    
 N/A 182477 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 70 | Inside Diameter N/A 5.297 in134.54 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -626 | Product Guides N/A Seal Guides | 
| BS626 U-90 | IntegrationID                                                    
 N/A 182478 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 90 | Inside Diameter N/A 5.297 in134.54 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -626 | Product Guides N/A Seal Guides | 
| BS625 U-70 | IntegrationID                                                    
 N/A 182479 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 70 | Inside Diameter N/A 4.906 in124.61 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -625 | Product Guides N/A Seal Guides | 
| BS625 U-90 | IntegrationID                                                    
 N/A 182480 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 90 | Inside Diameter N/A 4.906 in124.61 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -625 | Product Guides N/A Seal Guides | 
| BS624 U-70 | IntegrationID                                                    
 N/A 182481 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 70 | Inside Diameter N/A 4.516 in114.71 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -624 | Product Guides N/A Seal Guides | 
| BS624 U-90 | IntegrationID                                                    
 N/A 182482 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A 90 | Inside Diameter N/A 4.516 in114.71 mm | CSW Tolerance N/A 0.006 in0.15 mm | BS Number N/A -624 | Product Guides N/A Seal Guides | 
| BS623 U-70 | IntegrationID                                                    
 N/A 182483 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 4.313 in109.54 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -623 | Product Guides N/A Seal Guides | 
| BS623 U-90 | IntegrationID                                                    
 N/A 182484 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 4.313 in109.54 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -623 | Product Guides N/A Seal Guides | 
| BS622 U-70 | IntegrationID                                                    
 N/A 182485 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.937 in100.00 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -622 | Product Guides N/A Seal Guides | 
| BS622 U-90 | IntegrationID                                                    
 N/A 182486 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.937 in100.00 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -622 | Product Guides N/A Seal Guides | 
| BS621 U-70 | IntegrationID                                                    
 N/A 182487 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.531 in89.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -621 | Product Guides N/A Seal Guides | 
| BS621 U-90 | IntegrationID                                                    
 N/A 182488 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.531 in89.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -621 | Product Guides N/A Seal Guides | 
| BS620 U-70 | IntegrationID                                                    
 N/A 182489 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 70 | Inside Diameter N/A 3.141 in79.78 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -620 | Product Guides N/A Seal Guides | 
| BS620 U-90 | IntegrationID                                                    
 N/A 182490 | Type N/A BS Standard O-Ring | Material N/A Polyurethane | Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A 90 | Inside Diameter N/A 3.141 in79.78 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -620 | Product Guides N/A Seal Guides | 
 
 

