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
-224 PTFE	N/A 195380	N/A 0.139 in3.53 mm	N/A	N/A 44.04 mm1.734 in	N/A 0.004 in0.10 mm	N/A 0.015 in0.38 mm	N/A -224
-225 PTFE	N/A 195381	N/A 0.139 in3.53 mm	N/A	N/A 47.22 mm1.859 in	N/A 0.004 in0.10 mm	N/A 0.018 in0.46 mm	N/A -225
-226 PTFE	N/A 195382	N/A 0.139 in3.53 mm	N/A	N/A 50.39 mm1.984 in	N/A 0.004 in0.10 mm	N/A 0.018 in0.46 mm	N/A -226
-227 PTFE	N/A 195383	N/A 0.139 in3.53 mm	N/A	N/A 53.57 mm2.109 in	N/A 0.004 in0.10 mm	N/A 0.018 in0.46 mm	N/A -227
-228 PTFE	N/A 195384	N/A 0.139 in3.53 mm	N/A	N/A 56.74 mm2.234 in	N/A 0.004 in0.10 mm	N/A 0.020 in0.50 mm	N/A -228
-229 PTFE	N/A 195385	N/A 0.139 in3.53 mm	N/A	N/A 59.92 mm2.359 in	N/A 0.004 in0.10 mm	N/A 0.020 in0.50 mm	N/A -229
-230 PTFE	N/A 195386	N/A 0.139 in3.53 mm	N/A	N/A 63.09 mm2.484 in	N/A 0.004 in0.10 mm	N/A 0.020 in0.50 mm	N/A -230
-231 PTFE	N/A 195387	N/A 0.139 in3.53 mm	N/A	N/A 66.27 mm2.609 in	N/A 0.004 in0.10 mm	N/A 0.020 in0.50 mm	N/A -231
-232 PTFE	N/A 195388	N/A 0.139 in3.53 mm	N/A	N/A 69.44 mm2.734 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -232
-233 PTFE	N/A 195389	N/A 0.139 in3.53 mm	N/A	N/A 72.62 mm2.859 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -233
-234 PTFE	N/A 195390	N/A 0.139 in3.53 mm	N/A	N/A 75.79 mm2.984 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -234
-235 PTFE	N/A 195391	N/A 0.139 in3.53 mm	N/A	N/A 78.97 mm3.109 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -235
-236 PTFE	N/A 195392	N/A 0.139 in3.53 mm	N/A	N/A 82.14 mm3.234 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -236
-237 PTFE	N/A 195393	N/A 0.139 in3.53 mm	N/A	N/A 85.32 mm3.359 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -237
-238 PTFE	N/A 195394	N/A 0.139 in3.53 mm	N/A	N/A 88.49 mm3.484 in	N/A 0.004 in0.10 mm	N/A 0.024 in0.61 mm	N/A -238
-239 PTFE	N/A 195395	N/A 0.139 in3.53 mm	N/A	N/A 91.67 mm3.609 in	N/A 0.004 in0.10 mm	N/A 0.028 in0.71 mm	N/A -239
-240 PTFE	N/A 195396	N/A 0.139 in3.53 mm	N/A	N/A 94.84 mm3.734 in	N/A 0.004 in0.10 mm	N/A 0.028 in0.71 mm	N/A -240
-241 PTFE	N/A 195397	N/A 0.139 in3.53 mm	N/A	N/A 98.02 mm3.859 in	N/A 0.004 in0.10 mm	N/A 0.028 in0.71 mm	N/A -241
-242 PTFE	N/A 195398	N/A 0.139 in3.53 mm	N/A	N/A 101.19 mm3.984 in	N/A 0.004 in0.10 mm	N/A 0.028 in0.71 mm	N/A -242
-243 PTFE	N/A 195399	N/A 0.139 in3.53 mm	N/A	N/A 104.37 mm4.109 in	N/A 0.004 in0.10 mm	N/A 0.028 in0.71 mm	N/A -243
-244 PTFE	N/A 195400	N/A 0.139 in3.53 mm	N/A	N/A 107.54 mm4.234 in	N/A 0.004 in0.10 mm	N/A 0.030 in0.76 mm	N/A -244
-245 PTFE	N/A 195401	N/A 0.139 in3.53 mm	N/A	N/A 110.72 mm4.359 in	N/A 0.004 in0.10 mm	N/A 0.030 in0.76 mm	N/A -245
-246 PTFE	N/A 195402	N/A 0.139 in3.53 mm	N/A	N/A 113.89 mm4.484 in	N/A 0.004 in0.10 mm	N/A 0.030 in0.76 mm	N/A -246
-247 PTFE	N/A 195403	N/A 0.139 in3.53 mm	N/A	N/A 117.07 mm4.609 in	N/A 0.004 in0.10 mm	N/A 0.030 in0.76 mm	N/A -247
-248 PTFE	N/A 195404	N/A 0.139 in3.53 mm	N/A	N/A 120.24 mm4.734 in	N/A 0.004 in0.10 mm	N/A 0.030 in0.76 mm	N/A -248

N/A
195380

N/A 0.139 in3.53 mm

N/A

N/A 44.04 mm1.734 in

N/A 0.004 in0.10 mm

N/A 0.015 in0.38 mm

N/A -224

-225 PTFE

N/A
195381

N/A 0.139 in3.53 mm

N/A

N/A 47.22 mm1.859 in

N/A 0.004 in0.10 mm

N/A 0.018 in0.46 mm

N/A -225

-226 PTFE

N/A
195382

N/A 0.139 in3.53 mm

N/A

N/A 50.39 mm1.984 in

N/A 0.004 in0.10 mm

N/A 0.018 in0.46 mm

N/A -226

-227 PTFE

N/A
195383

N/A 0.139 in3.53 mm

N/A

N/A 53.57 mm2.109 in

N/A 0.004 in0.10 mm

N/A 0.018 in0.46 mm

N/A -227

-228 PTFE

N/A
195384

N/A 0.139 in3.53 mm

N/A

N/A 56.74 mm2.234 in

N/A 0.004 in0.10 mm

N/A 0.020 in0.50 mm

N/A -228

-229 PTFE

N/A
195385

N/A 0.139 in3.53 mm

N/A

N/A 59.92 mm2.359 in

N/A 0.004 in0.10 mm

N/A 0.020 in0.50 mm

N/A -229

-230 PTFE

N/A
195386

N/A 0.139 in3.53 mm

N/A

N/A 63.09 mm2.484 in

N/A 0.004 in0.10 mm

N/A 0.020 in0.50 mm

N/A -230

-231 PTFE

N/A
195387

N/A 0.139 in3.53 mm

N/A

N/A 66.27 mm2.609 in

N/A 0.004 in0.10 mm

N/A 0.020 in0.50 mm

N/A -231

-232 PTFE

N/A
195388

N/A 0.139 in3.53 mm

N/A

N/A 69.44 mm2.734 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -232

-233 PTFE

N/A
195389

N/A 0.139 in3.53 mm

N/A

N/A 72.62 mm2.859 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -233

-234 PTFE

N/A
195390

N/A 0.139 in3.53 mm

N/A

N/A 75.79 mm2.984 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -234

-235 PTFE

N/A
195391

N/A 0.139 in3.53 mm

N/A

N/A 78.97 mm3.109 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -235

-236 PTFE

N/A
195392

N/A 0.139 in3.53 mm

N/A

N/A 82.14 mm3.234 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -236

-237 PTFE

N/A
195393

N/A 0.139 in3.53 mm

N/A

N/A 85.32 mm3.359 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -237

-238 PTFE

N/A
195394

N/A 0.139 in3.53 mm

N/A

N/A 88.49 mm3.484 in

N/A 0.004 in0.10 mm

N/A 0.024 in0.61 mm

N/A -238

-239 PTFE

N/A
195395

N/A 0.139 in3.53 mm

N/A

N/A 91.67 mm3.609 in

N/A 0.004 in0.10 mm

N/A 0.028 in0.71 mm

N/A -239

-240 PTFE

N/A
195396

N/A 0.139 in3.53 mm

N/A

N/A 94.84 mm3.734 in

N/A 0.004 in0.10 mm

N/A 0.028 in0.71 mm

N/A -240

-241 PTFE

N/A
195397

N/A 0.139 in3.53 mm

N/A

N/A 98.02 mm3.859 in

N/A 0.004 in0.10 mm

N/A 0.028 in0.71 mm

N/A -241

-242 PTFE

N/A
195398

N/A 0.139 in3.53 mm

N/A

N/A 101.19 mm3.984 in

N/A 0.004 in0.10 mm

N/A 0.028 in0.71 mm

N/A -242

-243 PTFE

N/A
195399

N/A 0.139 in3.53 mm

N/A

N/A 104.37 mm4.109 in

N/A 0.004 in0.10 mm

N/A 0.028 in0.71 mm

N/A -243

-244 PTFE

N/A
195400

N/A 0.139 in3.53 mm

N/A

N/A 107.54 mm4.234 in

N/A 0.004 in0.10 mm

N/A 0.030 in0.76 mm

N/A -244

-245 PTFE

N/A
195401

N/A 0.139 in3.53 mm

N/A

N/A 110.72 mm4.359 in

N/A 0.004 in0.10 mm

N/A 0.030 in0.76 mm

N/A -245

-246 PTFE

N/A
195402

N/A 0.139 in3.53 mm

N/A

N/A 113.89 mm4.484 in

N/A 0.004 in0.10 mm

N/A 0.030 in0.76 mm

N/A -246

-247 PTFE

N/A
195403

N/A 0.139 in3.53 mm

N/A

N/A 117.07 mm4.609 in

N/A 0.004 in0.10 mm

N/A 0.030 in0.76 mm

N/A -247

-248 PTFE

N/A
195404

N/A 0.139 in3.53 mm

N/A

N/A 120.24 mm4.734 in

N/A 0.004 in0.10 mm

N/A 0.030 in0.76 mm

N/A -248