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
BS344 U-90 N/A
182766 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.850 in97.79 mm N/A 0.005 in0.13 mm N/A -344
BS343 U-70 N/A
182767 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.725 in94.62 mm N/A 0.005 in0.13 mm N/A -343
BS343 U-90 N/A
182768 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.725 in94.62 mm N/A 0.005 in0.13 mm N/A -343
BS342 U-70 N/A
182769 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.600 in91.44 mm N/A 0.005 in0.13 mm N/A -342
BS342 U-90 N/A
182770 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.600 in91.44 mm N/A 0.005 in0.13 mm N/A -342
BS341 U-70 N/A
182771 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.475 in88.27 mm N/A 0.005 in0.13 mm N/A -341
BS341 U-90 N/A
182772 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.475 in88.27 mm N/A 0.005 in0.13 mm N/A -341
BS340 U-70 N/A
182773 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.350 in85.09 mm N/A 0.005 in0.13 mm N/A -340
BS340 U-90 N/A
182774 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.350 in85.09 mm N/A 0.005 in0.13 mm N/A -340
BS339 U-70 N/A
182775 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.225 in81.92 mm N/A 0.005 in0.13 mm N/A -339
BS339 U-90 N/A
182776 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.225 in81.92 mm N/A 0.005 in0.13 mm N/A -339
BS338 U-70 N/A
182777 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 3.100 in78.74 mm N/A 0.005 in0.13 mm N/A -338
BS338 U-90 N/A
182778 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 3.100 in78.74 mm N/A 0.005 in0.13 mm N/A -338
BS337 U-70 N/A
182779 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.975 in75.57 mm N/A 0.005 in0.13 mm N/A -337
BS337 U-90 N/A
182780 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.975 in75.57 mm N/A 0.005 in0.13 mm N/A -337
BS336 U-70 N/A
182781 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.850 in72.39 mm N/A 0.005 in0.13 mm N/A -336
BS336 U-90 N/A
182782 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.850 in72.39 mm N/A 0.005 in0.13 mm N/A -336
BS335 U-70 N/A
182783 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.725 in69.22 mm N/A 0.005 in0.13 mm N/A -335
BS335 U-90 N/A
182784 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.725 in69.22 mm N/A 0.005 in0.13 mm N/A -335
BS334 U-70 N/A
182785 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.600 in66.04 mm N/A 0.005 in0.13 mm N/A -334
BS334 U-90 N/A
182786 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.600 in66.04 mm N/A 0.005 in0.13 mm N/A -334
BS333 U-70 N/A
182787 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.475 in62.87 mm N/A 0.005 in0.13 mm N/A -333
BS333 U-90 N/A
182788 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.475 in62.87 mm N/A 0.005 in0.13 mm N/A -333
BS332 U-70 N/A
182789 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 2.350 in59.69 mm N/A 0.005 in0.13 mm N/A -332
BS332 U-90 N/A
182790 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 2.350 in59.69 mm N/A 0.005 in0.13 mm N/A -332
Unit of Measure
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