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  • BS O-Rings

OneMonroe PTFE O-Rings provide an exceptional sealing solution for demanding applications where standard rubber or elastomer rings may fall short. These high-quality O-Rings are made from PTFE (polytetrafluoroethylene), a versatile and durable material known for its remarkable resistance to high temperatures, chemicals, and extreme environmental conditions. PTFE O-Rings offer superior performance in harsh industrial settings, such as chemical processing, oil and gas, and food manufacturing, where contamination-free, leak-proof seals are essential. OneMonroe’s PTFE O-Rings are designed to maintain their integrity under extreme pressure, making them an optimal choice for businesses that prioritize reliable, long-lasting components.

Available in a range of sizes to fit various BS specifications, OneMonroe’s PTFE O-Rings are engineered to meet the unique demands of high-temperature and corrosive applications. Unlike traditional O-Rings, PTFE O-Rings are non-reactive and highly resistant to a wide range of chemicals, including acids, bases, and solvents, allowing them to deliver top-notch performance where rubber O-Rings might degrade. The PTFE material also boasts a low coefficient of friction, which minimizes wear and tear on both the O-Ring and surrounding components. This means less downtime and fewer replacements, translating to cost savings and increased operational efficiency for your business.

OneMonroe is committed to providing products that offer exceptional durability and performance in even the most challenging environments. Each PTFE O-Ring is precision-manufactured and quality-checked to meet stringent industry standards, ensuring you receive a reliable product every time. Whether you’re working in an industrial, automotive, or medical setting, OneMonroe PTFE O-Rings are designed to handle the job with unmatched resilience and durability. Trust OneMonroe’s dedication to quality and performance, and let our PTFE O-Rings help keep your operations running smoothly and securely.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

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Cross Section Width (in)

Cross Section Width (mm)

Inside Diameter (in)

Inside Diameter (mm)

Item #

IntegrationID

Type

Material

Cross Section Width

Inside Diameter

CSW Tolerance

BS Number

N/A
189561 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 5.484 in139.29 mm N/A 0.004 in0.10 mm N/A -254
N/A
189562 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 5.359 in136.12 mm N/A 0.004 in0.10 mm N/A -253
N/A
189563 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 5.234 in132.94 mm N/A 0.004 in0.10 mm N/A -252
N/A
189564 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 5.109 in129.77 mm N/A 0.004 in0.10 mm N/A -251
N/A
189565 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.984 in126.59 mm N/A 0.004 in0.10 mm N/A -250
N/A
189566 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.859 in123.42 mm N/A 0.004 in0.10 mm N/A -249
N/A
189567 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.734 in120.24 mm N/A 0.004 in0.10 mm N/A -248
N/A
189568 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.759 in117.07 mm N/A 0.004 in0.10 mm N/A -247
N/A
189569 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.484 in113.89 mm N/A 0.004 in0.10 mm N/A -246
N/A
189570 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.359 in110.72 mm N/A 0.004 in0.10 mm N/A -245
N/A
189571 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.234 in107.54 mm N/A 0.004 in0.10 mm N/A -244
N/A
189572 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 4.109 in104.37 mm N/A 0.004 in0.10 mm N/A -243
N/A
189573 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.984 in101.19 mm N/A 0.004 in0.10 mm N/A -242
N/A
189574 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.859 in98.02 mm N/A 0.004 in0.10 mm N/A -241
N/A
189575 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.734 in94.84 mm N/A 0.004 in0.10 mm N/A -240
N/A
189576 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.759 in91.67 mm N/A 0.004 in0.10 mm N/A -239
N/A
189577 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.484 in88.49 mm N/A 0.004 in0.10 mm N/A -238
N/A
189578 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.359 in85.32 mm N/A 0.004 in0.10 mm N/A -237
N/A
189579 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.234 in82.14 mm N/A 0.004 in0.10 mm N/A -236
N/A
189580 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 3.109 in78.97 mm N/A 0.004 in0.10 mm N/A -235
N/A
189581 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 2.984 in75.79 mm N/A 0.004 in0.10 mm N/A -234
N/A
189582 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 2.859 in72.62 mm N/A 0.004 in0.10 mm N/A -233
N/A
189583 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 2.734 in69.44 mm N/A 0.004 in0.10 mm N/A -232
N/A
189584 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 2.759 in66.27 mm N/A 0.004 in0.10 mm N/A -231
N/A
189585 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 2.484 in63.09 mm N/A 0.004 in0.10 mm N/A -230
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