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 |
---|---|---|---|---|---|---|---|---|
BS331 U-70 |
IntegrationID
N/A 182791 |
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 2.225 in56.52 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -331 |
BS331 U-90 |
IntegrationID
N/A 182792 |
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 2.225 in56.52 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -331 |
BS330 U-70 |
IntegrationID
N/A 182793 |
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 2.100 in53.34 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -330 |
BS330 U-90 |
IntegrationID
N/A 182794 |
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 2.100 in53.34 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -330 |
BS329 U-70 |
IntegrationID
N/A 182795 |
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 1.975 in50.17 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -329 |
BS329 U-90 |
IntegrationID
N/A 182796 |
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 1.975 in50.17 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -329 |
BS328 U-70 |
IntegrationID
N/A 182797 |
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 1.850 in46.99 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -328 |
BS328 U-90 |
IntegrationID
N/A 182798 |
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 1.850 in46.99 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -328 |
BS327 U-70 |
IntegrationID
N/A 182799 |
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 1.725 in43.82 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -327 |
BS327 U-90 |
IntegrationID
N/A 182800 |
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 1.725 in43.82 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -327 |
BS326 U-70 |
IntegrationID
N/A 182801 |
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 1.600 in40.64 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -326 |
BS326 U-90 |
IntegrationID
N/A 182802 |
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 1.600 in40.64 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -326 |
BS325 U-70 |
IntegrationID
N/A 182803 |
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 1.475 in37.47 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -325 |
BS325 U-90 |
IntegrationID
N/A 182804 |
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 1.475 in37.47 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -325 |
BS324 U-70 |
IntegrationID
N/A 182805 |
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 1.350 in34.29 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -324 |
BS324 U-90 |
IntegrationID
N/A 182806 |
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 1.350 in34.29 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -324 |
BS323 U-70 |
IntegrationID
N/A 182807 |
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 1.287 in32.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -323 |
BS323 U-90 |
IntegrationID
N/A 182808 |
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 1.287 in32.69 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -323 |
BS322 U-70 |
IntegrationID
N/A 182809 |
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 1.225 in31.12 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -322 |
BS322 U-90 |
IntegrationID
N/A 182810 |
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 1.225 in31.12 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -322 |
BS321 U-70 |
IntegrationID
N/A 182811 |
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 1.162 in29.51 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -321 |
BS321 U-90 |
IntegrationID
N/A 182812 |
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 1.162 in29.51 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -321 |
BS320 U-70 |
IntegrationID
N/A 182813 |
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 1.100 in27.94 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -320 |
BS320 U-90 |
IntegrationID
N/A 182814 |
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 1.100 in27.94 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -320 |
BS319 U-70 |
IntegrationID
N/A 182815 |
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 1.037 in26.34 mm | CSW Tolerance N/A 0.005 in0.13 mm | BS Number N/A -319 |