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.
Cross Section Width (in)
Cross Section Width (mm)
Inside Diameter (mm)
Inside Diameter (in)
Item # |
IntegrationID |
Cross Section Width |
Durometer |
Inside Diameter |
Cross Section Tolerance +/- |
Inside Diameter Tolerance +/- |
Size Reference - AS568 |
---|---|---|---|---|---|---|---|
-177 PTFE |
IntegrationID
N/A 195355 |
Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A | Inside Diameter N/A 240.97 mm9.487 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -177 |
-178 PTFE |
IntegrationID
N/A 195356 |
Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A | Inside Diameter N/A 247.32 mm9.737 in | Cross Section Tolerance +/- N/A 0.003 in0.08 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -178 |
-201 PTFE |
IntegrationID
N/A 195357 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 4.34 mm0.171 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -201 |
-202 PTFE |
IntegrationID
N/A 195358 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 5.94 mm0.234 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -202 |
-203 PTFE |
IntegrationID
N/A 195359 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 7.52 mm0.296 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -203 |
-204 PTFE |
IntegrationID
N/A 195360 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 9.12 mm0.359 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -204 |
-205 PTFE |
IntegrationID
N/A 195361 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 10.69 mm0.421 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -205 |
-206 PTFE |
IntegrationID
N/A 195362 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 12.29 mm0.484 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -206 |
-207 PTFE |
IntegrationID
N/A 195363 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 13.87 mm0.546 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.007 in0.17 mm | Size Reference - AS568 N/A -207 |
-208 PTFE |
IntegrationID
N/A 195364 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 15.47 mm0.609 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.009 in0.23 mm | Size Reference - AS568 N/A -208 |
-209 PTFE |
IntegrationID
N/A 195365 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 17.04 mm0.671 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.009 in0.23 mm | Size Reference - AS568 N/A -209 |
-210 PTFE |
IntegrationID
N/A 195366 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 18.64 mm0.734 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -210 |
-211 PTFE |
IntegrationID
N/A 195367 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 20.22 mm0.796 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -211 |
-212 PTFE |
IntegrationID
N/A 195368 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 21.82 mm0.859 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -212 |
-213 PTFE |
IntegrationID
N/A 195369 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 23.39 mm0.921 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -213 |
-214 PTFE |
IntegrationID
N/A 195370 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 24.99 mm0.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -214 |
-215 PTFE |
IntegrationID
N/A 195371 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 26.57 mm1.046 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -215 |
-216 PTFE |
IntegrationID
N/A 195372 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 28.17 mm1.109 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -216 |
-217 PTFE |
IntegrationID
N/A 195373 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 29.74 mm1.171 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -217 |
-218 PTFE |
IntegrationID
N/A 195374 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 31.34 mm1.234 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -218 |
-219 PTFE |
IntegrationID
N/A 195375 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 32.92 mm1.296 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -219 |
-220 PTFE |
IntegrationID
N/A 195376 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 34.52 mm1.359 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -220 |
-221 PTFE |
IntegrationID
N/A 195377 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 36.09 mm1.421 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -221 |
-222 PTFE |
IntegrationID
N/A 195378 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 37.69 mm1.484 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mm | Size Reference - AS568 N/A -222 |
-223 PTFE |
IntegrationID
N/A 195379 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 40.87 mm1.609 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.015 in0.38 mm | Size Reference - AS568 N/A -223 |