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
-127 PTFE	N/A 195305	N/A 0.103 in2.62 mm	N/A	N/A 36.17 mm1.424 in	N/A 0.003 in0.08 mm	N/A 0.012 in0.30 mm	N/A -127
-128 PTFE	N/A 195306	N/A 0.103 in2.62 mm	N/A	N/A 37.77 mm1.487 in	N/A 0.003 in0.08 mm	N/A 0.012 in0.30 mm	N/A -128
-129 PTFE	N/A 195307	N/A 0.103 in2.62 mm	N/A	N/A 39.34 mm1.549 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -129
-130 PTFE	N/A 195308	N/A 0.103 in2.62 mm	N/A	N/A 40.94 mm1.612 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -130
-131 PTFE	N/A 195309	N/A 0.103 in2.62 mm	N/A	N/A 42.52 mm1.674 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -131
-132 PTFE	N/A 195310	N/A 0.103 in2.62 mm	N/A	N/A 44.12 mm1.737 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -132
-133 PTFE	N/A 195311	N/A 0.103 in2.62 mm	N/A	N/A 45.69 mm1.799 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -133
-134 PTFE	N/A 195312	N/A 0.103 in2.62 mm	N/A	N/A 47.29 mm1.862 in	N/A 0.003 in0.08 mm	N/A 0.015 in0.38 mm	N/A -134
-135 PTFE	N/A 195313	N/A 0.103 in2.62 mm	N/A	N/A 48.90 mm1.925 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -135
-136 PTFE	N/A 195314	N/A 0.103 in2.62 mm	N/A	N/A 50.47 mm1.987 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -136
-137 PTFE	N/A 195315	N/A 0.103 in2.62 mm	N/A	N/A 52.07 mm2.050 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -137
-138 PTFE	N/A 195316	N/A 0.103 in2.62 mm	N/A	N/A 53.64 mm2.112 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -138
-139 PTFE	N/A 195317	N/A 0.103 in2.62 mm	N/A	N/A 55.25 mm2.175 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -139
-140 PTFE	N/A 195318	N/A 0.103 in2.62 mm	N/A	N/A 56.82 mm2.237 in	N/A 0.003 in0.08 mm	N/A 0.017 in0.43 mm	N/A -140
-141 PTFE	N/A 195319	N/A 0.103 in2.62 mm	N/A	N/A 58.42 mm2.300 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -141
-142 PTFE	N/A 195320	N/A 0.103 in2.62 mm	N/A	N/A 59.99 mm2.362 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -142
-143 PTFE	N/A 195321	N/A 0.103 in2.62 mm	N/A	N/A 61.60 mm2.425 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -143
-144 PTFE	N/A 195322	N/A 0.103 in2.62 mm	N/A	N/A 63.17 mm2.487 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -144
-145 PTFE	N/A 195323	N/A 0.103 in2.62 mm	N/A	N/A 64.77 mm2.550 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -145
-146 PTFE	N/A 195324	N/A 0.103 in2.62 mm	N/A	N/A 66.34 mm2.612 in	N/A 0.003 in0.08 mm	N/A 0.020 in0.50 mm	N/A -146
-147 PTFE	N/A 195325	N/A 0.103 in2.62 mm	N/A	N/A 67.95 mm2.675 in	N/A 0.003 in0.08 mm	N/A 0.022 in0.55 mm	N/A -147
-148 PTFE	N/A 195326	N/A 0.103 in2.62 mm	N/A	N/A 69.52 mm2.737 in	N/A 0.003 in0.08 mm	N/A 0.022 in0.55 mm	N/A -148
-149 PTFE	N/A 195327	N/A 0.103 in2.62 mm	N/A	N/A 71.12 mm2.800 in	N/A 0.003 in0.08 mm	N/A 0.022 in0.55 mm	N/A -149
-150 PTFE	N/A 195328	N/A 0.103 in2.62 mm	N/A	N/A 72.69 mm2.862 in	N/A 0.003 in0.08 mm	N/A 0.022 in0.55 mm	N/A -150
-151 PTFE	N/A 195329	N/A 0.103 in2.62 mm	N/A	N/A 75.87 mm2.987 in	N/A 0.003 in0.08 mm	N/A 0.024 in0.61 mm	N/A -151

N/A
195305

N/A 0.103 in2.62 mm

N/A

N/A 36.17 mm1.424 in

N/A 0.003 in0.08 mm

N/A 0.012 in0.30 mm

N/A -127

-128 PTFE

N/A
195306

N/A 0.103 in2.62 mm

N/A

N/A 37.77 mm1.487 in

N/A 0.003 in0.08 mm

N/A 0.012 in0.30 mm

N/A -128

-129 PTFE

N/A
195307

N/A 0.103 in2.62 mm

N/A

N/A 39.34 mm1.549 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -129

-130 PTFE

N/A
195308

N/A 0.103 in2.62 mm

N/A

N/A 40.94 mm1.612 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -130

-131 PTFE

N/A
195309

N/A 0.103 in2.62 mm

N/A

N/A 42.52 mm1.674 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -131

-132 PTFE

N/A
195310

N/A 0.103 in2.62 mm

N/A

N/A 44.12 mm1.737 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -132

-133 PTFE

N/A
195311

N/A 0.103 in2.62 mm

N/A

N/A 45.69 mm1.799 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -133

-134 PTFE

N/A
195312

N/A 0.103 in2.62 mm

N/A

N/A 47.29 mm1.862 in

N/A 0.003 in0.08 mm

N/A 0.015 in0.38 mm

N/A -134

-135 PTFE

N/A
195313

N/A 0.103 in2.62 mm

N/A

N/A 48.90 mm1.925 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -135

-136 PTFE

N/A
195314

N/A 0.103 in2.62 mm

N/A

N/A 50.47 mm1.987 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -136

-137 PTFE

N/A
195315

N/A 0.103 in2.62 mm

N/A

N/A 52.07 mm2.050 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -137

-138 PTFE

N/A
195316

N/A 0.103 in2.62 mm

N/A

N/A 53.64 mm2.112 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -138

-139 PTFE

N/A
195317

N/A 0.103 in2.62 mm

N/A

N/A 55.25 mm2.175 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -139

-140 PTFE

N/A
195318

N/A 0.103 in2.62 mm

N/A

N/A 56.82 mm2.237 in

N/A 0.003 in0.08 mm

N/A 0.017 in0.43 mm

N/A -140

-141 PTFE

N/A
195319

N/A 0.103 in2.62 mm

N/A

N/A 58.42 mm2.300 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -141

-142 PTFE

N/A
195320

N/A 0.103 in2.62 mm

N/A

N/A 59.99 mm2.362 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -142

-143 PTFE

N/A
195321

N/A 0.103 in2.62 mm

N/A

N/A 61.60 mm2.425 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -143

-144 PTFE

N/A
195322

N/A 0.103 in2.62 mm

N/A

N/A 63.17 mm2.487 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -144

-145 PTFE

N/A
195323

N/A 0.103 in2.62 mm

N/A

N/A 64.77 mm2.550 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -145

-146 PTFE

N/A
195324

N/A 0.103 in2.62 mm

N/A

N/A 66.34 mm2.612 in

N/A 0.003 in0.08 mm

N/A 0.020 in0.50 mm

N/A -146

-147 PTFE

N/A
195325

N/A 0.103 in2.62 mm

N/A

N/A 67.95 mm2.675 in

N/A 0.003 in0.08 mm

N/A 0.022 in0.55 mm

N/A -147

-148 PTFE

N/A
195326

N/A 0.103 in2.62 mm

N/A

N/A 69.52 mm2.737 in

N/A 0.003 in0.08 mm

N/A 0.022 in0.55 mm

N/A -148

-149 PTFE

N/A
195327

N/A 0.103 in2.62 mm

N/A

N/A 71.12 mm2.800 in

N/A 0.003 in0.08 mm

N/A 0.022 in0.55 mm

N/A -149

-150 PTFE

N/A
195328

N/A 0.103 in2.62 mm

N/A

N/A 72.69 mm2.862 in

N/A 0.003 in0.08 mm

N/A 0.022 in0.55 mm

N/A -150

-151 PTFE

N/A
195329

N/A 0.103 in2.62 mm

N/A

N/A 75.87 mm2.987 in

N/A 0.003 in0.08 mm

N/A 0.024 in0.61 mm

N/A -151