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 |
---|---|---|---|---|---|---|---|
-274 PTFE |
IntegrationID
N/A 195430 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 253.59 mm9.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -274 |
-275 PTFE |
IntegrationID
N/A 195431 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 266.29 mm10.484 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -275 |
-276 PTFE |
IntegrationID
N/A 195432 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 278.99 mm10.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -276 |
-277 PTFE |
IntegrationID
N/A 195433 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 291.69 mm11.484 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -277 |
-278 PTFE |
IntegrationID
N/A 195434 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 304.39 mm11.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -278 |
-279 PTFE |
IntegrationID
N/A 195435 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 329.79 mm12.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -279 |
-280 PTFE |
IntegrationID
N/A 195436 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 355.19 mm13.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -280 |
-281 PTFE |
IntegrationID
N/A 195437 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 380.59 mm14.984 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.065 in1.65 mm | Size Reference - AS568 N/A -281 |
-282 PTFE |
IntegrationID
N/A 195438 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 405.26 mm15.955 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.075 in1.90 mm | Size Reference - AS568 N/A -282 |
-283 PTFE |
IntegrationID
N/A 195439 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 430.66 mm16.955 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.080 in2.05 mm | Size Reference - AS568 N/A -283 |
-284 PTFE |
IntegrationID
N/A 195440 |
Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A | Inside Diameter N/A 456.06 mm17.955 in | Cross Section Tolerance +/- N/A 0.004 in0.10 mm | Inside Diameter Tolerance +/- N/A 0.085 in2.15 mm | Size Reference - AS568 N/A -284 |
-309 PTFE |
IntegrationID
N/A 195441 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 10.46 mm0.412 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -309 |
-310 PTFE |
IntegrationID
N/A 195442 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 12.07 mm0.475 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.005 in0.12 mm | Size Reference - AS568 N/A -310 |
-311 PTFE |
IntegrationID
N/A 195443 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 13.64 mm0.537 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.007 in0.17 mm | Size Reference - AS568 N/A -311 |
-312 PTFE |
IntegrationID
N/A 195444 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 15.24 mm0.600 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Size Reference - AS568 N/A -312 |
-313 PTFE |
IntegrationID
N/A 195445 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 16.81 mm0.662 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.009 in0.22 mm | Size Reference - AS568 N/A -313 |
-314 PTFE |
IntegrationID
N/A 195446 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 18.42 mm0.725 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -314 |
-315 PTFE |
IntegrationID
N/A 195447 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 19.99 mm0.787 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -315 |
-316 PTFE |
IntegrationID
N/A 195448 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 21.59 mm0.850 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -316 |
-317 PTFE |
IntegrationID
N/A 195449 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 23.16 mm0.912 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -317 |
-318 PTFE |
IntegrationID
N/A 195450 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 24.77 mm0.975 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -318 |
-319 PTFE |
IntegrationID
N/A 195451 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 26.34 mm1.037 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.010 in0.25 mm | Size Reference - AS568 N/A -319 |
-320 PTFE |
IntegrationID
N/A 195452 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 27.94 mm1.100 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -320 |
-321 PTFE |
IntegrationID
N/A 195453 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 29.51 mm1.162 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -321 |
-322 PTFE |
IntegrationID
N/A 195454 |
Cross Section Width N/A 0.210 in5.33 mm | Durometer N/A | Inside Diameter N/A 31.12 mm1.225 in | Cross Section Tolerance +/- N/A 0.005 in0.12 mm | Inside Diameter Tolerance +/- N/A 0.012 in0.30 mm | Size Reference - AS568 N/A -322 |