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
BS448 U-90 N/A
182616 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 9.475 in240.67 mm N/A 0.006 in0.15 mm N/A -448
BS447 U-70 N/A
182617 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 8.975 in227.97 mm N/A 0.006 in0.15 mm N/A -447
BS447 U-90 N/A
182618 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 8.975 in227.97 mm N/A 0.006 in0.15 mm N/A -447
BS446 U-70 N/A
182619 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 8.475 in215.27 mm N/A 0.006 in0.15 mm N/A -446
BS446 U-90 N/A
182620 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 8.475 in215.27 mm N/A 0.006 in0.15 mm N/A -446
BS445 U-70 N/A
182621 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 7.975 in202.57 mm N/A 0.006 in0.15 mm N/A -445
BS445 U-90 N/A
182622 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 7.975 in202.57 mm N/A 0.006 in0.15 mm N/A -445
BS444 U-70 N/A
182623 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 7.725 in196.22 mm N/A 0.006 in0.15 mm N/A -444
BS444 U-90 N/A
182624 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 7.725 in196.22 mm N/A 0.006 in0.15 mm N/A -444
BS443 U-70 N/A
182625 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 7.475 in189.87 mm N/A 0.006 in0.15 mm N/A -443
BS443 U-90 N/A
182626 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 7.475 in189.87 mm N/A 0.006 in0.15 mm N/A -443
BS442 U-70 N/A
182627 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 7.225 in183.52 mm N/A 0.006 in0.15 mm N/A -442
BS442 U-90 N/A
182628 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 7.225 in183.52 mm N/A 0.006 in0.15 mm N/A -442
BS441 U-70 N/A
182629 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.975 in177.17 mm N/A 0.006 in0.15 mm N/A -441
BS441 U-90 N/A
182630 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.975 in177.17 mm N/A 0.006 in0.15 mm N/A -441
BS440 U-70 N/A
182631 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.725 in170.82 mm N/A 0.006 in0.15 mm N/A -440
BS440 U-90 N/A
182632 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.725 in170.82 mm N/A 0.006 in0.15 mm N/A -440
BS439 U-70 N/A
182633 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.475 in164.47 mm N/A 0.006 in0.15 mm N/A -439
BS439 U-90 N/A
182634 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.475 in164.47 mm N/A 0.006 in0.15 mm N/A -439
BS438 U-70 N/A
182635 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 6.225 in158.12 mm N/A 0.006 in0.15 mm N/A -438
BS438 U-90 N/A
182636 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 6.225 in158.12 mm N/A 0.006 in0.15 mm N/A -438
BS437 U-70 N/A
182637 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.975 in151.77 mm N/A 0.006 in0.15 mm N/A -437
BS437 U-90 N/A
182638 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.975 in151.77 mm N/A 0.006 in0.15 mm N/A -437
BS436 U-70 N/A
182639 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.850 in148.59 mm N/A 0.006 in0.15 mm N/A -436
BS436 U-90 N/A
182640 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.850 in148.59 mm N/A 0.006 in0.15 mm N/A -436
Unit of Measure
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