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 |
---|---|---|---|---|---|---|---|
-427 PTFE |
IntegrationID
N/A 195555 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 120.02 mm4.725 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.033 in0.83 mm | Size Reference - AS568 N/A -427 |
-428 PTFE |
IntegrationID
N/A 195556 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 123.19 mm4.850 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.033 in0.83 mm | Size Reference - AS568 N/A -428 |
-429 PTFE |
IntegrationID
N/A 195557 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 126.37 mm4.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -429 |
-430 PTFE |
IntegrationID
N/A 195558 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 129.54 mm5.100 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -430 |
-431 PTFE |
IntegrationID
N/A 195559 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 132.72 mm5.225 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -431 |
-432 PTFE |
IntegrationID
N/A 195560 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 135.89 mm5.350 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -432 |
-433 PTFE |
IntegrationID
N/A 195561 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 139.07 mm5.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -433 |
-434 PTFE |
IntegrationID
N/A 195562 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 142.24 mm5.600 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -434 |
-435 PTFE |
IntegrationID
N/A 195563 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 145.42 mm5.725 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -435 |
-436 PTFE |
IntegrationID
N/A 195564 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 148.59 mm5.850 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -436 |
-437 PTFE |
IntegrationID
N/A 195565 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 151.77 mm5.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.037 in0.93 mm | Size Reference - AS568 N/A -437 |
-438 PTFE |
IntegrationID
N/A 195566 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 158.12 mm6.225 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.040 in1.01 mm | Size Reference - AS568 N/A -438 |
-439 PTFE |
IntegrationID
N/A 195567 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 164.47 mm6.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.040 in1.01 mm | Size Reference - AS568 N/A -439 |
-440 PTFE |
IntegrationID
N/A 195568 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 170.82 mm6.725 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.040 in1.01 mm | Size Reference - AS568 N/A -440 |
-441 PTFE |
IntegrationID
N/A 195569 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 177.17 mm6.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.040 in1.01 mm | Size Reference - AS568 N/A -441 |
-442 PTFE |
IntegrationID
N/A 195570 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 183.52 mm7.225 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mm | Size Reference - AS568 N/A -442 |
-443 PTFE |
IntegrationID
N/A 195571 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 189.87 mm7.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mm | Size Reference - AS568 N/A -443 |
-444 PTFE |
IntegrationID
N/A 195572 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 196.22 mm7.725 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mm | Size Reference - AS568 N/A -444 |
-445 PTFE |
IntegrationID
N/A 195573 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 202.57 mm7.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.045 in1.14 mm | Size Reference - AS568 N/A -445 |
-446 PTFE |
IntegrationID
N/A 195574 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 215.27 mm8.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -446 |
-447 PTFE |
IntegrationID
N/A 195575 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 227.97 mm8.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -447 |
-448 PTFE |
IntegrationID
N/A 195576 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 240.67 mm9.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -448 |
-449 PTFE |
IntegrationID
N/A 195577 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 253.37 mm9.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.055 in1.40 mm | Size Reference - AS568 N/A -449 |
-450 PTFE |
IntegrationID
N/A 195578 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 266.07 mm10.475 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.060 in1.52 mm | Size Reference - AS568 N/A -450 |
-451 PTFE |
IntegrationID
N/A 195579 |
Cross Section Width N/A 0.275 in6.99 mm | Durometer N/A | Inside Diameter N/A 278.77 mm10.975 in | Cross Section Tolerance +/- N/A 0.006 in0.15 mm | Inside Diameter Tolerance +/- N/A 0.060 in1.52 mm | Size Reference - AS568 N/A -451 |