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