Monroe
OneMonroe
Locations Throughout the Country
ISO 9001:2015
Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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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.

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS643 U-90 N/A
182466 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 3.299 in83.79 mm N/A 0.003 in0.08 mm N/A -643
BS642 U-70 N/A
182467 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 3.174 in80.62 mm N/A 0.003 in0.08 mm N/A -642
BS642 U-90 N/A
182468 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 3.174 in80.62 mm N/A 0.003 in0.08 mm N/A -642
BS641 U-70 N/A
182469 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 3.049 in77.44 mm N/A 0.003 in0.08 mm N/A -641
BS641 U-90 N/A
182470 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 3.049 in77.44 mm N/A 0.003 in0.08 mm N/A -641
BS640 U-70 N/A
182471 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.924 in74.27 mm N/A 0.003 in0.08 mm N/A -640
BS640 U-90 N/A
182472 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.924 in74.27 mm N/A 0.003 in0.08 mm N/A -640
BS628 U-70 N/A
182473 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.563 in166.70 mm N/A 0.006 in0.15 mm N/A -628
BS628 U-90 N/A
182474 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.563 in166.70 mm N/A 0.006 in0.15 mm N/A -628
BS627 U-70 N/A
182475 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.281 in159.54 mm N/A 0.006 in0.15 mm N/A -627
BS627 U-90 N/A
182476 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.281 in159.54 mm N/A 0.006 in0.15 mm N/A -627
BS626 U-70 N/A
182477 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.297 in134.54 mm N/A 0.006 in0.15 mm N/A -626
BS626 U-90 N/A
182478 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.297 in134.54 mm N/A 0.006 in0.15 mm N/A -626
BS625 U-70 N/A
182479 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.906 in124.61 mm N/A 0.006 in0.15 mm N/A -625
BS625 U-90 N/A
182480 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.906 in124.61 mm N/A 0.006 in0.15 mm N/A -625
BS624 U-70 N/A
182481 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.516 in114.71 mm N/A 0.006 in0.15 mm N/A -624
BS624 U-90 N/A
182482 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.516 in114.71 mm N/A 0.006 in0.15 mm N/A -624
BS623 U-70 N/A
182483 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 4.313 in109.54 mm N/A 0.005 in0.13 mm N/A -623
BS623 U-90 N/A
182484 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 4.313 in109.54 mm N/A 0.005 in0.13 mm N/A -623
BS622 U-70 N/A
182485 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.937 in100.00 mm N/A 0.005 in0.13 mm N/A -622
BS622 U-90 N/A
182486 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.937 in100.00 mm N/A 0.005 in0.13 mm N/A -622
BS621 U-70 N/A
182487 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.531 in89.69 mm N/A 0.005 in0.13 mm N/A -621
BS621 U-90 N/A
182488 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.531 in89.69 mm N/A 0.005 in0.13 mm N/A -621
BS620 U-70 N/A
182489 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.141 in79.78 mm N/A 0.005 in0.13 mm N/A -620
BS620 U-90 N/A
182490 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.141 in79.78 mm N/A 0.005 in0.13 mm N/A -620
Unit of Measure
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