Monroe
OneMonroe
Locations Throughout the Country
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Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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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.

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS331 PTFE N/A
189511 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 2.225 in56.52 mm N/A 0.005 in0.13 mm N/A -331
BS330 PTFE N/A
189512 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 2.100 in53.34 mm N/A 0.005 in0.13 mm N/A -330
BS329 PTFE N/A
189513 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.975 in50.17 mm N/A 0.005 in0.13 mm N/A -329
BS328 PTFE N/A
189514 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.850 in46.99 mm N/A 0.005 in0.13 mm N/A -328
BS327 PTFE N/A
189515 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.725 in43.82 mm N/A 0.005 in0.13 mm N/A -327
BS326 PTFE N/A
189516 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.75 in40.64 mm N/A 0.005 in0.13 mm N/A -326
BS325 PTFE N/A
189517 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.475 in37.47 mm N/A 0.005 in0.13 mm N/A -325
BS324 PTFE N/A
189518 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.350 in34.29 mm N/A 0.005 in0.13 mm N/A -324
BS323 PTFE N/A
189519 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.287 in32.69 mm N/A 0.005 in0.13 mm N/A -323
BS322 PTFE N/A
189520 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.225 in31.12 mm N/A 0.005 in0.13 mm N/A -322
BS321 PTFE N/A
189521 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.162 in29.51 mm N/A 0.005 in0.13 mm N/A -321
BS320 PTFE N/A
189522 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.100 in27.94 mm N/A 0.005 in0.13 mm N/A -320
BS319 PTFE N/A
189523 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 1.037 in26.34 mm N/A 0.005 in0.13 mm N/A -319
BS318 PTFE N/A
189524 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.975 in24.77 mm N/A 0.005 in0.13 mm N/A -318
BS317 PTFE N/A
189525 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.912 in23.16 mm N/A 0.005 in0.13 mm N/A -317
BS316 PTFE N/A
189526 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.850 in21.59 mm N/A 0.005 in0.13 mm N/A -316
BS315 PTFE N/A
189527 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.787 in19.99 mm N/A 0.005 in0.13 mm N/A -315
BS314 PTFE N/A
189528 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.725 in18.42 mm N/A 0.005 in0.13 mm N/A -314
BS313 PTFE N/A
189529 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.662 in16.81 mm N/A 0.005 in0.13 mm N/A -313
BS312 PTFE N/A
189530 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.75 in15.24 mm N/A 0.005 in0.13 mm N/A -312
BS311 PTFE N/A
189531 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.537 in13.64 mm N/A 0.005 in0.13 mm N/A -311
BS310 PTFE N/A
189532 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.475 in12.07 mm N/A 0.005 in0.13 mm N/A -310
BS309 PTFE N/A
189533 		N/A BS Standard O-Ring N/A PTFE N/A 0.210 in5.33 mm N/A 0.412 in10.46 mm N/A 0.005 in0.13 mm N/A -309
BS281 PTFE N/A
189534 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 14.984 in380.59 mm N/A 0.004 in0.10 mm N/A -281
BS280 PTFE N/A
189535 		N/A BS Standard O-Ring N/A PTFE N/A 0.139 in3.53 mm N/A 13.984 in355.19 mm N/A 0.004 in0.10 mm N/A -280
Unit of Measure
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