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
BS254 U-70 N/A
182891 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 5.484 in139.29 mm N/A 0.004 in0.10 mm N/A -254
BS254 U-90 N/A
182892 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 5.484 in139.29 mm N/A 0.004 in0.10 mm N/A -254
BS253 U-70 N/A
182893 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 5.359 in136.12 mm N/A 0.004 in0.10 mm N/A -253
BS253 U-90 N/A
182894 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 5.359 in136.12 mm N/A 0.004 in0.10 mm N/A -253
BS252 U-70 N/A
182895 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 5.234 in132.94 mm N/A 0.004 in0.10 mm N/A -252
BS252 U-90 N/A
182896 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 5.234 in132.94 mm N/A 0.004 in0.10 mm N/A -252
BS251 U-70 N/A
182897 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 5.109 in129.77 mm N/A 0.004 in0.10 mm N/A -251
BS251 U-90 N/A
182898 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 5.109 in129.77 mm N/A 0.004 in0.10 mm N/A -251
BS250 U-70 N/A
182899 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.984 in126.59 mm N/A 0.004 in0.10 mm N/A -250
BS250 U-90 N/A
182900 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.984 in126.59 mm N/A 0.004 in0.10 mm N/A -250
BS249 U-70 N/A
182901 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.859 in123.42 mm N/A 0.004 in0.10 mm N/A -249
BS249 U-90 N/A
182902 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.859 in123.42 mm N/A 0.004 in0.10 mm N/A -249
BS248 U-70 N/A
182903 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.734 in120.24 mm N/A 0.004 in0.10 mm N/A -248
BS248 U-90 N/A
182904 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.734 in120.24 mm N/A 0.004 in0.10 mm N/A -248
BS247 U-70 N/A
182905 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.609 in117.07 mm N/A 0.004 in0.10 mm N/A -247
BS247 U-90 N/A
182906 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.609 in117.07 mm N/A 0.004 in0.10 mm N/A -247
BS246 U-70 N/A
182907 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.484 in113.89 mm N/A 0.004 in0.10 mm N/A -246
BS246 U-90 N/A
182908 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.484 in113.89 mm N/A 0.004 in0.10 mm N/A -246
BS245 U-70 N/A
182909 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.359 in110.72 mm N/A 0.004 in0.10 mm N/A -245
BS245 U-90 N/A
182910 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.359 in110.72 mm N/A 0.004 in0.10 mm N/A -245
BS244 U-70 N/A
182911 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.234 in107.54 mm N/A 0.004 in0.10 mm N/A -244
BS244 U-90 N/A
182912 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.234 in107.54 mm N/A 0.004 in0.10 mm N/A -244
BS243 U-70 N/A
182913 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.109 in104.37 mm N/A 0.004 in0.10 mm N/A -243
BS243 U-90 N/A
182914 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.109 in104.37 mm N/A 0.004 in0.10 mm N/A -243
BS242 U-70 N/A
182915 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 3.984 in101.19 mm N/A 0.004 in0.10 mm N/A -242
Unit of Measure
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