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 | 
|---|---|---|---|---|---|---|---|---|---|
| BS145 U-90 | IntegrationID                                                    
 N/A 183066 | 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 2.550 in64.77 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -145 | Product Guides N/A Seal Guides | 
| BS144 U-70 | IntegrationID                                                    
 N/A 183067 | 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 2.487 in63.17 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -144 | Product Guides N/A Seal Guides | 
| BS144 U-90 | IntegrationID                                                    
 N/A 183068 | 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 2.487 in63.17 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -144 | Product Guides N/A Seal Guides | 
| BS143 U-70 | IntegrationID                                                    
 N/A 183069 | 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 2.425 in61.60 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -143 | Product Guides N/A Seal Guides | 
| BS143 U-90 | IntegrationID                                                    
 N/A 183070 | 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 2.425 in61.60 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -143 | Product Guides N/A Seal Guides | 
| BS142 U-70 | IntegrationID                                                    
 N/A 183071 | 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 2.362 in59.99 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -142 | Product Guides N/A Seal Guides | 
| BS142 U-90 | IntegrationID                                                    
 N/A 183072 | 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 2.362 in59.99 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -142 | Product Guides N/A Seal Guides | 
| BS141 U-70 | IntegrationID                                                    
 N/A 183073 | 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 2.300 in58.42 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -141 | Product Guides N/A Seal Guides | 
| BS141 U-90 | IntegrationID                                                    
 N/A 183074 | 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 2.300 in58.42 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -141 | Product Guides N/A Seal Guides | 
| BS140 U-70 | IntegrationID                                                    
 N/A 183075 | 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 2.237 in56.82 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -140 | Product Guides N/A Seal Guides | 
| BS140 U-90 | IntegrationID                                                    
 N/A 183076 | 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 2.237 in56.82 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -140 | Product Guides N/A Seal Guides | 
| BS139 U-70 | IntegrationID                                                    
 N/A 183077 | 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 2.175 in55.25 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -139 | Product Guides N/A Seal Guides | 
| BS139 U-90 | IntegrationID                                                    
 N/A 183078 | 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 2.175 in55.25 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -139 | Product Guides N/A Seal Guides | 
| BS138 U-70 | IntegrationID                                                    
 N/A 183079 | 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 2.112 in53.64 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -138 | Product Guides N/A Seal Guides | 
| BS138 U-90 | IntegrationID                                                    
 N/A 183080 | 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 2.112 in53.64 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -138 | Product Guides N/A Seal Guides | 
| BS137 U-70 | IntegrationID                                                    
 N/A 183081 | 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 2.050 in52.07 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -137 | Product Guides N/A Seal Guides | 
| BS137 U-90 | IntegrationID                                                    
 N/A 183082 | 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 2.050 in52.07 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -137 | Product Guides N/A Seal Guides | 
| BS136 U-70 | IntegrationID                                                    
 N/A 183083 | 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 1.987 in50.47 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -136 | Product Guides N/A Seal Guides | 
| BS136 U-90 | IntegrationID                                                    
 N/A 183084 | 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 1.987 in50.47 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -136 | Product Guides N/A Seal Guides | 
| BS135 U-70 | IntegrationID                                                    
 N/A 183085 | 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 1.925 in48.90 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -135 | Product Guides N/A Seal Guides | 
| BS135 U-90 | IntegrationID                                                    
 N/A 183086 | 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 1.925 in48.90 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -135 | Product Guides N/A Seal Guides | 
| BS134 U-70 | IntegrationID                                                    
 N/A 183087 | 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 1.862 in47.29 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -134 | Product Guides N/A Seal Guides | 
| BS134 U-90 | IntegrationID                                                    
 N/A 183088 | 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 1.862 in47.29 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -134 | Product Guides N/A Seal Guides | 
| BS133 U-70 | IntegrationID                                                    
 N/A 183089 | 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 1.799 in45.69 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -133 | Product Guides N/A Seal Guides | 
| BS133 U-90 | IntegrationID                                                    
 N/A 183090 | 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 1.799 in45.69 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -133 | Product Guides N/A Seal Guides | 
 
 

