AS568 PTFE O-Rings

OneMonroe’s PTFE O-Rings are designed for applications demanding unparalleled chemical resistance, extreme temperature tolerance, and longevity. Crafted from high-quality PTFE (Polytetrafluoroethylene), these O-rings are well-suited for challenging environments that would compromise other materials. The AS568 standard sizing ensures compatibility across a wide range of applications, from industrial machinery to specialized equipment in chemical processing and food manufacturing. OneMonroe’s commitment to quality means that every PTFE O-ring offers a secure, leak-proof seal that withstands high pressures, making them indispensable for rigorous applications where performance and reliability are essential.

The unique properties of PTFE make these O-rings ideal for environments exposed to aggressive chemicals, solvents, and extreme temperatures. Unlike traditional rubber or elastomer O-rings, PTFE O-rings retain their integrity in high-temperature applications, withstanding ranges from -328°F to 500°F (-200°C to 260°C). This resilience ensures that the O-rings remain effective in sealing processes under the most demanding conditions. Additionally, PTFE’s non-stick properties mean these O-rings experience minimal friction and wear, which prolongs their lifespan and helps reduce maintenance downtime.

At OneMonroe, we understand that no two projects are identical, and our extensive inventory of AS568 PTFE O-rings provides a solution for nearly every industry need. Whether you’re working in aerospace, medical technology, or heavy-duty industrial applications, our PTFE O-rings offer reliable, long-lasting performance. We prioritize quality in every O-ring we produce, ensuring each piece delivers a precise fit and secure seal. With OneMonroe’s PTFE O-rings, you gain not only an exceptional product but also a partner committed to meeting the highest standards of excellence in sealing solutions.

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

Item #	IntegrationID	Cross Section Width	Durometer	Inside Diameter	Cross Section Tolerance +/-	Inside Diameter Tolerance +/-	Size Reference - AS568
-323 PTFE	N/A 195455	N/A 0.210 in5.33 mm	N/A	N/A 32.69 mm1.287 in	N/A 0.005 in0.12 mm	N/A 0.012 in0.30 mm	N/A -323
-324 PTFE	N/A 195456	N/A 0.210 in5.33 mm	N/A	N/A 34.29 mm1.350 in	N/A 0.005 in0.12 mm	N/A 0.012 in0.30 mm	N/A -324
-325 PTFE	N/A 195457	N/A 0.210 in5.33 mm	N/A	N/A 37.47 mm1.475 in	N/A 0.005 in0.12 mm	N/A 0.015 in0.38 mm	N/A -325
-326 PTFE	N/A 195458	N/A 0.210 in5.33 mm	N/A	N/A 40.64 mm1.600 in	N/A 0.005 in0.12 mm	N/A 0.015 in0.38 mm	N/A -326
-327 PTFE	N/A 195459	N/A 0.210 in5.33 mm	N/A	N/A 43.82 mm1.725 in	N/A 0.005 in0.12 mm	N/A 0.015 in0.38 mm	N/A -327
-328 PTFE	N/A 195460	N/A 0.210 in5.33 mm	N/A	N/A 46.99 mm1.850 in	N/A 0.005 in0.12 mm	N/A 0.015 in0.38 mm	N/A -328
-329 PTFE	N/A 195461	N/A 0.210 in5.33 mm	N/A	N/A 50.17 mm1.975 in	N/A 0.005 in0.12 mm	N/A 0.018 in0.46 mm	N/A -329
-330 PTFE	N/A 195462	N/A 0.210 in5.33 mm	N/A	N/A 53.34 mm2.100 in	N/A 0.005 in0.12 mm	N/A 0.018 in0.46 mm	N/A -330
-331 PTFE	N/A 195463	N/A 0.210 in5.33 mm	N/A	N/A 56.52 mm2.225 in	N/A 0.005 in0.12 mm	N/A 0.018 in0.46 mm	N/A -331
-332 PTFE	N/A 195464	N/A 0.210 in5.33 mm	N/A	N/A 59.69 mm2.350 in	N/A 0.005 in0.12 mm	N/A 0.018 in0.46 mm	N/A -332
-333 PTFE	N/A 195465	N/A 0.210 in5.33 mm	N/A	N/A 62.87 mm2.475 in	N/A 0.005 in0.12 mm	N/A 0.020 in0.50 mm	N/A -333
-334 PTFE	N/A 195466	N/A 0.210 in5.33 mm	N/A	N/A 66.04 mm2.600 in	N/A 0.005 in0.12 mm	N/A 0.020 in0.50 mm	N/A -334
-335 PTFE	N/A 195467	N/A 0.210 in5.33 mm	N/A	N/A 69.22 mm2.725 in	N/A 0.005 in0.12 mm	N/A 0.020 in0.50 mm	N/A -335
-336 PTFE	N/A 195468	N/A 0.210 in5.33 mm	N/A	N/A 72.39 mm2.850 in	N/A 0.005 in0.12 mm	N/A 0.020 in0.50 mm	N/A -336
-337 PTFE	N/A 195469	N/A 0.210 in5.33 mm	N/A	N/A 75.57 mm2.975 in	N/A 0.005 in0.12 mm	N/A 0.024 in0.61 mm	N/A -337
-338 PTFE	N/A 195470	N/A 0.210 in5.33 mm	N/A	N/A 78.74 mm3.100 in	N/A 0.005 in0.12 mm	N/A 0.024 in0.61 mm	N/A -338
-339 PTFE	N/A 195471	N/A 0.210 in5.33 mm	N/A	N/A 81.92 mm3.225 in	N/A 0.005 in0.12 mm	N/A 0.024 in0.61 mm	N/A -339
-340 PTFE	N/A 195472	N/A 0.210 in5.33 mm	N/A	N/A 85.09 mm3.350 in	N/A 0.005 in0.12 mm	N/A 0.024 in0.61 mm	N/A -340
-341 PTFE	N/A 195473	N/A 0.210 in5.33 mm	N/A	N/A 88.27 mm3.475 in	N/A 0.005 in0.12 mm	N/A 0.024 in0.61 mm	N/A -341
-342 PTFE	N/A 195474	N/A 0.210 in5.33 mm	N/A	N/A 91.44 mm3.600 in	N/A 0.005 in0.12 mm	N/A 0.028 in0.71 mm	N/A -342
-343 PTFE	N/A 195475	N/A 0.210 in5.33 mm	N/A	N/A 94.62 mm3.725 in	N/A 0.005 in0.12 mm	N/A 0.028 in0.71 mm	N/A -343
-344 PTFE	N/A 195476	N/A 0.210 in5.33 mm	N/A	N/A 97.79 mm3.850 in	N/A 0.005 in0.12 mm	N/A 0.028 in0.71 mm	N/A -344
-345 PTFE	N/A 195477	N/A 0.210 in5.33 mm	N/A	N/A 100.97 mm3.975 in	N/A 0.005 in0.12 mm	N/A 0.028 in0.71 mm	N/A -345
-346 PTFE	N/A 195478	N/A 0.210 in5.33 mm	N/A	N/A 104.14 mm4.100 in	N/A 0.005 in0.12 mm	N/A 0.028 in0.71 mm	N/A -346
-347 PTFE	N/A 195479	N/A 0.210 in5.33 mm	N/A	N/A 107.32 mm4.225 in	N/A 0.005 in0.12 mm	N/A 0.030 in0.76 mm	N/A -347

N/A
195455

N/A 0.210 in5.33 mm

N/A

N/A 32.69 mm1.287 in

N/A 0.005 in0.12 mm

N/A 0.012 in0.30 mm

N/A -323

-324 PTFE

N/A
195456

N/A 0.210 in5.33 mm

N/A

N/A 34.29 mm1.350 in

N/A 0.005 in0.12 mm

N/A 0.012 in0.30 mm

N/A -324

-325 PTFE

N/A
195457

N/A 0.210 in5.33 mm

N/A

N/A 37.47 mm1.475 in

N/A 0.005 in0.12 mm

N/A 0.015 in0.38 mm

N/A -325

-326 PTFE

N/A
195458

N/A 0.210 in5.33 mm

N/A

N/A 40.64 mm1.600 in

N/A 0.005 in0.12 mm

N/A 0.015 in0.38 mm

N/A -326

-327 PTFE

N/A
195459

N/A 0.210 in5.33 mm

N/A

N/A 43.82 mm1.725 in

N/A 0.005 in0.12 mm

N/A 0.015 in0.38 mm

N/A -327

-328 PTFE

N/A
195460

N/A 0.210 in5.33 mm

N/A

N/A 46.99 mm1.850 in

N/A 0.005 in0.12 mm

N/A 0.015 in0.38 mm

N/A -328

-329 PTFE

N/A
195461

N/A 0.210 in5.33 mm

N/A

N/A 50.17 mm1.975 in

N/A 0.005 in0.12 mm

N/A 0.018 in0.46 mm

N/A -329

-330 PTFE

N/A
195462

N/A 0.210 in5.33 mm

N/A

N/A 53.34 mm2.100 in

N/A 0.005 in0.12 mm

N/A 0.018 in0.46 mm

N/A -330

-331 PTFE

N/A
195463

N/A 0.210 in5.33 mm

N/A

N/A 56.52 mm2.225 in

N/A 0.005 in0.12 mm

N/A 0.018 in0.46 mm

N/A -331

-332 PTFE

N/A
195464

N/A 0.210 in5.33 mm

N/A

N/A 59.69 mm2.350 in

N/A 0.005 in0.12 mm

N/A 0.018 in0.46 mm

N/A -332

-333 PTFE

N/A
195465

N/A 0.210 in5.33 mm

N/A

N/A 62.87 mm2.475 in

N/A 0.005 in0.12 mm

N/A 0.020 in0.50 mm

N/A -333

-334 PTFE

N/A
195466

N/A 0.210 in5.33 mm

N/A

N/A 66.04 mm2.600 in

N/A 0.005 in0.12 mm

N/A 0.020 in0.50 mm

N/A -334

-335 PTFE

N/A
195467

N/A 0.210 in5.33 mm

N/A

N/A 69.22 mm2.725 in

N/A 0.005 in0.12 mm

N/A 0.020 in0.50 mm

N/A -335

-336 PTFE

N/A
195468

N/A 0.210 in5.33 mm

N/A

N/A 72.39 mm2.850 in

N/A 0.005 in0.12 mm

N/A 0.020 in0.50 mm

N/A -336

-337 PTFE

N/A
195469

N/A 0.210 in5.33 mm

N/A

N/A 75.57 mm2.975 in

N/A 0.005 in0.12 mm

N/A 0.024 in0.61 mm

N/A -337

-338 PTFE

N/A
195470

N/A 0.210 in5.33 mm

N/A

N/A 78.74 mm3.100 in

N/A 0.005 in0.12 mm

N/A 0.024 in0.61 mm

N/A -338

-339 PTFE

N/A
195471

N/A 0.210 in5.33 mm

N/A

N/A 81.92 mm3.225 in

N/A 0.005 in0.12 mm

N/A 0.024 in0.61 mm

N/A -339

-340 PTFE

N/A
195472

N/A 0.210 in5.33 mm

N/A

N/A 85.09 mm3.350 in

N/A 0.005 in0.12 mm

N/A 0.024 in0.61 mm

N/A -340

-341 PTFE

N/A
195473

N/A 0.210 in5.33 mm

N/A

N/A 88.27 mm3.475 in

N/A 0.005 in0.12 mm

N/A 0.024 in0.61 mm

N/A -341

-342 PTFE

N/A
195474

N/A 0.210 in5.33 mm

N/A

N/A 91.44 mm3.600 in

N/A 0.005 in0.12 mm

N/A 0.028 in0.71 mm

N/A -342

-343 PTFE

N/A
195475

N/A 0.210 in5.33 mm

N/A

N/A 94.62 mm3.725 in

N/A 0.005 in0.12 mm

N/A 0.028 in0.71 mm

N/A -343

-344 PTFE

N/A
195476

N/A 0.210 in5.33 mm

N/A

N/A 97.79 mm3.850 in

N/A 0.005 in0.12 mm

N/A 0.028 in0.71 mm

N/A -344

-345 PTFE

N/A
195477

N/A 0.210 in5.33 mm

N/A

N/A 100.97 mm3.975 in

N/A 0.005 in0.12 mm

N/A 0.028 in0.71 mm

N/A -345

-346 PTFE

N/A
195478

N/A 0.210 in5.33 mm

N/A

N/A 104.14 mm4.100 in

N/A 0.005 in0.12 mm

N/A 0.028 in0.71 mm

N/A -346

-347 PTFE

N/A
195479

N/A 0.210 in5.33 mm

N/A

N/A 107.32 mm4.225 in

N/A 0.005 in0.12 mm

N/A 0.030 in0.76 mm

N/A -347