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
BS435 U-70 N/A
182641 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.725 in145.42 mm N/A 0.006 in0.15 mm N/A -435
BS435 U-90 N/A
182642 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.725 in145.42 mm N/A 0.006 in0.15 mm N/A -435
BS434 U-70 N/A
182643 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.600 in142.24 mm N/A 0.006 in0.15 mm N/A -434
BS434 U-90 N/A
182644 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.600 in142.24 mm N/A 0.006 in0.15 mm N/A -434
BS433 U-70 N/A
182645 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.475 in139.07 mm N/A 0.006 in0.15 mm N/A -433
BS433 U-90 N/A
182646 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.475 in139.07 mm N/A 0.006 in0.15 mm N/A -433
BS432 U-70 N/A
182647 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.350 in135.89 mm N/A 0.006 in0.15 mm N/A -432
BS432 U-90 N/A
182648 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.350 in135.89 mm N/A 0.006 in0.15 mm N/A -432
BS431 U-70 N/A
182649 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.225 in132.72 mm N/A 0.006 in0.15 mm N/A -431
BS431 U-90 N/A
182650 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.225 in132.72 mm N/A 0.006 in0.15 mm N/A -431
BS430 U-70 N/A
182651 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 5.100 in129.54 mm N/A 0.006 in0.15 mm N/A -430
BS430 U-90 N/A
182652 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 5.100 in129.54 mm N/A 0.006 in0.15 mm N/A -430
BS429 U-70 N/A
182653 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.975 in126.37 mm N/A 0.006 in0.15 mm N/A -429
BS429 U-90 N/A
182654 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.975 in126.37 mm N/A 0.006 in0.15 mm N/A -429
BS428 U-70 N/A
182655 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.850 in123.19 mm N/A 0.006 in0.15 mm N/A -428
BS428 U-90 N/A
182656 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.850 in123.19 mm N/A 0.006 in0.15 mm N/A -428
BS427 U-70 N/A
182657 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.725 in120.02 mm N/A 0.006 in0.15 mm N/A -427
BS427 U-90 N/A
182658 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.725 in120.02 mm N/A 0.006 in0.15 mm N/A -427
BS426 U-70 N/A
182659 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.600 in116.84 mm N/A 0.006 in0.15 mm N/A -426
BS426 U-90 N/A
182660 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.600 in116.84 mm N/A 0.006 in0.15 mm N/A -426
BS425 U-70 N/A
182661 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.475 in113.67 mm N/A 0.006 in0.15 mm N/A -425
BS425 U-90 N/A
182662 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.475 in113.67 mm N/A 0.006 in0.15 mm N/A -425
BS395 U-70 N/A
182663 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 25.940 in658.88 mm N/A 0.005 in0.13 mm N/A -395
BS395 U-90 N/A
182664 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 25.940 in658.88 mm N/A 0.005 in0.13 mm N/A -395
BS394 U-70 N/A
182665 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 24.940 in633.48 mm N/A 0.005 in0.13 mm N/A -394
Unit of Measure
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