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
BS242 U-90 N/A
182916 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.984 in101.19 mm N/A 0.004 in0.10 mm N/A -242
BS241 U-70 N/A
182917 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.859 in98.02 mm N/A 0.004 in0.10 mm N/A -241
BS241 U-90 N/A
182918 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.859 in98.02 mm N/A 0.004 in0.10 mm N/A -241
BS240 U-70 N/A
182919 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.734 in94.84 mm N/A 0.004 in0.10 mm N/A -240
BS240 U-90 N/A
182920 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.734 in94.84 mm N/A 0.004 in0.10 mm N/A -240
BS239 U-70 N/A
182921 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.609 in91.67 mm N/A 0.004 in0.10 mm N/A -239
BS239 U-90 N/A
182922 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.609 in91.67 mm N/A 0.004 in0.10 mm N/A -239
BS238 U-70 N/A
182923 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.484 in88.49 mm N/A 0.004 in0.10 mm N/A -238
BS238 U-90 N/A
182924 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.484 in88.49 mm N/A 0.004 in0.10 mm N/A -238
BS237 U-70 N/A
182925 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.359 in85.32 mm N/A 0.004 in0.10 mm N/A -237
BS237 U-90 N/A
182926 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.359 in85.32 mm N/A 0.004 in0.10 mm N/A -237
BS236 U-70 N/A
182927 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.234 in82.14 mm N/A 0.004 in0.10 mm N/A -236
BS236 U-90 N/A
182928 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.234 in82.14 mm N/A 0.004 in0.10 mm N/A -236
BS235 U-70 N/A
182929 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.109 in78.97 mm N/A 0.004 in0.10 mm N/A -235
BS235 U-90 N/A
182930 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 3.109 in78.97 mm N/A 0.004 in0.10 mm N/A -235
BS234 U-70 N/A
182931 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.984 in75.79 mm N/A 0.004 in0.10 mm N/A -234
BS234 U-90 N/A
182932 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.984 in75.79 mm N/A 0.004 in0.10 mm N/A -234
BS233 U-70 N/A
182933 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.859 in72.62 mm N/A 0.004 in0.10 mm N/A -233
BS233 U-90 N/A
182934 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.859 in72.62 mm N/A 0.004 in0.10 mm N/A -233
BS232 U-70 N/A
182935 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.734 in69.44 mm N/A 0.004 in0.10 mm N/A -232
BS232 U-90 N/A
182936 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.734 in69.44 mm N/A 0.004 in0.10 mm N/A -232
BS231 U-70 N/A
182937 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.609 in66.27 mm N/A 0.004 in0.10 mm N/A -231
BS231 U-90 N/A
182938 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.609 in66.27 mm N/A 0.004 in0.10 mm N/A -231
BS230 U-70 N/A
182939 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.484 in63.09 mm N/A 0.004 in0.10 mm N/A -230
BS230 U-90 N/A
182940 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.484 in63.09 mm N/A 0.004 in0.10 mm N/A -230
Unit of Measure
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