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
BS6 U-70 N/A
183241 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.114 in2.90 mm N/A 0.003 in0.08 mm N/A -006
BS6 U-90 N/A
183242 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.114 in2.90 mm N/A 0.003 in0.08 mm N/A -006
BS5 U-70 N/A
183243 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.101 in2.57 mm N/A 0.003 in0.08 mm N/A -005
BS5 U-90 N/A
183244 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.101 in2.57 mm N/A 0.003 in0.08 mm N/A -005
BS4 U-70 N/A
183245 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.070 in1.78 mm N/A 0.003 in0.08 mm N/A -004
BS4 U-90 N/A
183246 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.070 in1.78 mm N/A 0.003 in0.08 mm N/A -004
BS3 U-70 N/A
183247 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.060 in1.52 mm N/A 70 N/A 0.056 in1.42 mm N/A 0.003 in0.08 mm N/A -003
BS3 U-90 N/A
183248 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.060 in1.52 mm N/A 90 N/A 0.056 in1.42 mm N/A 0.003 in0.08 mm N/A -003
BS2 U-70 N/A
183249 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.050 in1.27 mm N/A 70 N/A 0.042 in1.07 mm N/A 0.003 in0.08 mm N/A -002
BS2 U-90 N/A
183250 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.050 in1.27 mm N/A 90 N/A 0.042 in1.07 mm N/A 0.003 in0.08 mm N/A -002
BS445A U-70 N/A
183251 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 8.225 in208.92 mm N/A 0.006 in0.15 mm N/A -445A
BS445A U-90 N/A
183252 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 8.225 in208.92 mm N/A 0.006 in0.15 mm N/A -445A
BS446A U-70 N/A
183253 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 8.725 in221.62 mm N/A 0.006 in0.15 mm N/A -446A
BS446A U-90 N/A
183254 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 8.725 in221.62 mm N/A 0.006 in0.15 mm N/A -446A
BS447A U-70 N/A
183255 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 9.225 in234.32 mm N/A 0.006 in0.15 mm N/A -447A
BS447A U-90 N/A
183256 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 9.225 in234.32 mm N/A 0.006 in0.15 mm N/A -447A
BS448A U-70 N/A
183257 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 9.725 in247.02 mm N/A 0.006 in0.15 mm N/A -448A
BS448A U-90 N/A
183258 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 9.725 in247.02 mm N/A 0.006 in0.15 mm N/A -448A
BS449A U-70 N/A
183259 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 10.225 in259.72 mm N/A 0.006 in0.15 mm N/A -449A
BS449A U-90 N/A
183260 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 10.225 in259.72 mm N/A 0.006 in0.15 mm N/A -449A
BS450A U-70 N/A
183261 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 10.725 in272.42 mm N/A 0.006 in0.15 mm N/A -450A
BS450A U-90 N/A
183262 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 10.725 in272.42 mm N/A 0.006 in0.15 mm N/A -450A
BS451A U-70 N/A
183263 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 11.225 in285.12 mm N/A 0.006 in0.15 mm N/A -451A
BS451A U-90 N/A
183264 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 11.225 in285.12 mm N/A 0.006 in0.15 mm N/A -451A
BS452A U-70 N/A
183265 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 11.725 in297.82 mm N/A 0.006 in0.15 mm N/A -452A
Unit of Measure
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