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
BS145 U-90 N/A
183066 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.550 in64.77 mm N/A 0.003 in0.08 mm N/A -145
BS144 U-70 N/A
183067 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.487 in63.17 mm N/A 0.003 in0.08 mm N/A -144
BS144 U-90 N/A
183068 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.487 in63.17 mm N/A 0.003 in0.08 mm N/A -144
BS143 U-70 N/A
183069 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.425 in61.60 mm N/A 0.003 in0.08 mm N/A -143
BS143 U-90 N/A
183070 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.425 in61.60 mm N/A 0.003 in0.08 mm N/A -143
BS142 U-70 N/A
183071 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.362 in59.99 mm N/A 0.003 in0.08 mm N/A -142
BS142 U-90 N/A
183072 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.362 in59.99 mm N/A 0.003 in0.08 mm N/A -142
BS141 U-70 N/A
183073 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.300 in58.42 mm N/A 0.003 in0.08 mm N/A -141
BS141 U-90 N/A
183074 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.300 in58.42 mm N/A 0.003 in0.08 mm N/A -141
BS140 U-70 N/A
183075 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.237 in56.82 mm N/A 0.003 in0.08 mm N/A -140
BS140 U-90 N/A
183076 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.237 in56.82 mm N/A 0.003 in0.08 mm N/A -140
BS139 U-70 N/A
183077 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.175 in55.25 mm N/A 0.003 in0.08 mm N/A -139
BS139 U-90 N/A
183078 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.175 in55.25 mm N/A 0.003 in0.08 mm N/A -139
BS138 U-70 N/A
183079 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.112 in53.64 mm N/A 0.003 in0.08 mm N/A -138
BS138 U-90 N/A
183080 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.112 in53.64 mm N/A 0.003 in0.08 mm N/A -138
BS137 U-70 N/A
183081 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 2.050 in52.07 mm N/A 0.003 in0.08 mm N/A -137
BS137 U-90 N/A
183082 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 2.050 in52.07 mm N/A 0.003 in0.08 mm N/A -137
BS136 U-70 N/A
183083 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.987 in50.47 mm N/A 0.003 in0.08 mm N/A -136
BS136 U-90 N/A
183084 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.987 in50.47 mm N/A 0.003 in0.08 mm N/A -136
BS135 U-70 N/A
183085 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.925 in48.90 mm N/A 0.003 in0.08 mm N/A -135
BS135 U-90 N/A
183086 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.925 in48.90 mm N/A 0.003 in0.08 mm N/A -135
BS134 U-70 N/A
183087 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.862 in47.29 mm N/A 0.003 in0.08 mm N/A -134
BS134 U-90 N/A
183088 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.862 in47.29 mm N/A 0.003 in0.08 mm N/A -134
BS133 U-70 N/A
183089 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.799 in45.69 mm N/A 0.003 in0.08 mm N/A -133
BS133 U-90 N/A
183090 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.799 in45.69 mm N/A 0.003 in0.08 mm N/A -133
Unit of Measure
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