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	Product Guides
-152 PTFE	N/A 195330	N/A 0.103 in2.62 mm	N/A	N/A 82.22 mm3.237 in	N/A 0.003 in0.08 mm	N/A 0.024 in0.61 mm	N/A -152	N/A Seal Guides
-153 PTFE	N/A 195331	N/A 0.103 in2.62 mm	N/A	N/A 88.57 mm3.487 in	N/A 0.003 in0.08 mm	N/A 0.024 in0.61 mm	N/A -153	N/A Seal Guides
-154 PTFE	N/A 195332	N/A 0.103 in2.62 mm	N/A	N/A 94.92 mm3.737 in	N/A 0.003 in0.08 mm	N/A 0.028 in0.71 mm	N/A -154	N/A Seal Guides
-155 PTFE	N/A 195333	N/A 0.103 in2.62 mm	N/A	N/A 101.27 mm3.987 in	N/A 0.003 in0.08 mm	N/A 0.028 in0.71 mm	N/A -155	N/A Seal Guides
-156 PTFE	N/A 195334	N/A 0.103 in2.62 mm	N/A	N/A 107.62 mm4.237 in	N/A 0.003 in0.08 mm	N/A 0.030 in0.76 mm	N/A -156	N/A Seal Guides
-157 PTFE	N/A 195335	N/A 0.103 in2.62 mm	N/A	N/A 113.97 mm4.487 in	N/A 0.003 in0.08 mm	N/A 0.030 in0.76 mm	N/A -157	N/A Seal Guides
-158 PTFE	N/A 195336	N/A 0.103 in2.62 mm	N/A	N/A 120.32 mm4.737 in	N/A 0.003 in0.08 mm	N/A 0.030 in0.76 mm	N/A -158	N/A Seal Guides
-159 PTFE	N/A 195337	N/A 0.103 in2.62 mm	N/A	N/A 126.67 mm4.987 in	N/A 0.003 in0.08 mm	N/A 0.035 in0.89 mm	N/A -159	N/A Seal Guides
-160 PTFE	N/A 195338	N/A 0.103 in2.62 mm	N/A	N/A 133.02 mm5.237 in	N/A 0.003 in0.08 mm	N/A 0.035 in0.89 mm	N/A -160	N/A Seal Guides
-161 PTFE	N/A 195339	N/A 0.103 in2.62 mm	N/A	N/A 139.37 mm5.487 in	N/A 0.003 in0.08 mm	N/A 0.035 in0.89 mm	N/A -161	N/A Seal Guides
-162 PTFE	N/A 195340	N/A 0.103 in2.62 mm	N/A	N/A 145.72 mm5.737 in	N/A 0.003 in0.08 mm	N/A 0.035 in0.89 mm	N/A -162	N/A Seal Guides
-163 PTFE	N/A 195341	N/A 0.103 in2.62 mm	N/A	N/A 152.07 mm5.987 in	N/A 0.003 in0.08 mm	N/A 0.035 in0.89 mm	N/A -163	N/A Seal Guides
-164 PTFE	N/A 195342	N/A 0.103 in2.62 mm	N/A	N/A 158.42 mm6.237 in	N/A 0.003 in0.08 mm	N/A 0.040 in1.02 mm	N/A -164	N/A Seal Guides
-165 PTFE	N/A 195343	N/A 0.103 in2.62 mm	N/A	N/A 164.77 mm6.487 in	N/A 0.003 in0.08 mm	N/A 0.040 in1.02 mm	N/A -165	N/A Seal Guides
-166 PTFE	N/A 195344	N/A 0.103 in2.62 mm	N/A	N/A 171.12 mm6.737 in	N/A 0.003 in0.08 mm	N/A 0.040 in1.02 mm	N/A -166	N/A Seal Guides
-167 PTFE	N/A 195345	N/A 0.103 in2.62 mm	N/A	N/A 177.47 mm6.987 in	N/A 0.003 in0.08 mm	N/A 0.040 in1.02 mm	N/A -167	N/A Seal Guides
-168 PTFE	N/A 195346	N/A 0.103 in2.62 mm	N/A	N/A 183.82 mm7.237 in	N/A 0.003 in0.08 mm	N/A 0.045 in1.14 mm	N/A -168	N/A Seal Guides
-169 PTFE	N/A 195347	N/A 0.103 in2.62 mm	N/A	N/A 190.17 mm7.487 in	N/A 0.003 in0.08 mm	N/A 0.045 in1.14 mm	N/A -169	N/A Seal Guides
-170 PTFE	N/A 195348	N/A 0.103 in2.62 mm	N/A	N/A 196.52 mm7.737 in	N/A 0.003 in0.08 mm	N/A 0.045 in1.14 mm	N/A -170	N/A Seal Guides
-171 PTFE	N/A 195349	N/A 0.103 in2.62 mm	N/A	N/A 202.87 mm7.987 in	N/A 0.003 in0.08 mm	N/A 0.045 in1.14 mm	N/A -171	N/A Seal Guides
-172 PTFE	N/A 195350	N/A 0.103 in2.62 mm	N/A	N/A 209.22 mm8.237 in	N/A 0.003 in0.08 mm	N/A 0.050 in1.25 mm	N/A -172	N/A Seal Guides
-173 PTFE	N/A 195351	N/A 0.103 in2.62 mm	N/A	N/A 215.57 mm8.487 in	N/A 0.003 in0.08 mm	N/A 0.050 in1.25 mm	N/A -173	N/A Seal Guides
-174 PTFE	N/A 195352	N/A 0.103 in2.62 mm	N/A	N/A 221.92 mm8.737 in	N/A 0.003 in0.08 mm	N/A 0.050 in1.25 mm	N/A -174	N/A Seal Guides
-175 PTFE	N/A 195353	N/A 0.103 in2.62 mm	N/A	N/A 228.27 mm8.987 in	N/A 0.003 in0.08 mm	N/A 0.050 in1.25 mm	N/A -175	N/A Seal Guides
-176 PTFE	N/A 195354	N/A 0.103 in2.62 mm	N/A	N/A 234.62 mm9.237 in	N/A 0.003 in0.08 mm	N/A 0.055 in1.40 mm	N/A -176	N/A Seal Guides

N/A
195330

N/A 0.103 in2.62 mm

N/A

N/A 82.22 mm3.237 in

N/A 0.003 in0.08 mm

N/A 0.024 in0.61 mm

N/A -152

N/A Seal Guides

-153 PTFE

N/A
195331

N/A 0.103 in2.62 mm

N/A

N/A 88.57 mm3.487 in

N/A 0.003 in0.08 mm

N/A 0.024 in0.61 mm

N/A -153

N/A Seal Guides

-154 PTFE

N/A
195332

N/A 0.103 in2.62 mm

N/A

N/A 94.92 mm3.737 in

N/A 0.003 in0.08 mm

N/A 0.028 in0.71 mm

N/A -154

N/A Seal Guides

-155 PTFE

N/A
195333

N/A 0.103 in2.62 mm

N/A

N/A 101.27 mm3.987 in

N/A 0.003 in0.08 mm

N/A 0.028 in0.71 mm

N/A -155

N/A Seal Guides

-156 PTFE

N/A
195334

N/A 0.103 in2.62 mm

N/A

N/A 107.62 mm4.237 in

N/A 0.003 in0.08 mm

N/A 0.030 in0.76 mm

N/A -156

N/A Seal Guides

-157 PTFE

N/A
195335

N/A 0.103 in2.62 mm

N/A

N/A 113.97 mm4.487 in

N/A 0.003 in0.08 mm

N/A 0.030 in0.76 mm

N/A -157

N/A Seal Guides

-158 PTFE

N/A
195336

N/A 0.103 in2.62 mm

N/A

N/A 120.32 mm4.737 in

N/A 0.003 in0.08 mm

N/A 0.030 in0.76 mm

N/A -158

N/A Seal Guides

-159 PTFE

N/A
195337

N/A 0.103 in2.62 mm

N/A

N/A 126.67 mm4.987 in

N/A 0.003 in0.08 mm

N/A 0.035 in0.89 mm

N/A -159

N/A Seal Guides

-160 PTFE

N/A
195338

N/A 0.103 in2.62 mm

N/A

N/A 133.02 mm5.237 in

N/A 0.003 in0.08 mm

N/A 0.035 in0.89 mm

N/A -160

N/A Seal Guides

-161 PTFE

N/A
195339

N/A 0.103 in2.62 mm

N/A

N/A 139.37 mm5.487 in

N/A 0.003 in0.08 mm

N/A 0.035 in0.89 mm

N/A -161

N/A Seal Guides

-162 PTFE

N/A
195340

N/A 0.103 in2.62 mm

N/A

N/A 145.72 mm5.737 in

N/A 0.003 in0.08 mm

N/A 0.035 in0.89 mm

N/A -162

N/A Seal Guides

-163 PTFE

N/A
195341

N/A 0.103 in2.62 mm

N/A

N/A 152.07 mm5.987 in

N/A 0.003 in0.08 mm

N/A 0.035 in0.89 mm

N/A -163

N/A Seal Guides

-164 PTFE

N/A
195342

N/A 0.103 in2.62 mm

N/A

N/A 158.42 mm6.237 in

N/A 0.003 in0.08 mm

N/A 0.040 in1.02 mm

N/A -164

N/A Seal Guides

-165 PTFE

N/A
195343

N/A 0.103 in2.62 mm

N/A

N/A 164.77 mm6.487 in

N/A 0.003 in0.08 mm

N/A 0.040 in1.02 mm

N/A -165

N/A Seal Guides

-166 PTFE

N/A
195344

N/A 0.103 in2.62 mm

N/A

N/A 171.12 mm6.737 in

N/A 0.003 in0.08 mm

N/A 0.040 in1.02 mm

N/A -166

N/A Seal Guides

-167 PTFE

N/A
195345

N/A 0.103 in2.62 mm

N/A

N/A 177.47 mm6.987 in

N/A 0.003 in0.08 mm

N/A 0.040 in1.02 mm

N/A -167

N/A Seal Guides

-168 PTFE

N/A
195346

N/A 0.103 in2.62 mm

N/A

N/A 183.82 mm7.237 in

N/A 0.003 in0.08 mm

N/A 0.045 in1.14 mm

N/A -168

N/A Seal Guides

-169 PTFE

N/A
195347

N/A 0.103 in2.62 mm

N/A

N/A 190.17 mm7.487 in

N/A 0.003 in0.08 mm

N/A 0.045 in1.14 mm

N/A -169

N/A Seal Guides

-170 PTFE

N/A
195348

N/A 0.103 in2.62 mm

N/A

N/A 196.52 mm7.737 in

N/A 0.003 in0.08 mm

N/A 0.045 in1.14 mm

N/A -170

N/A Seal Guides

-171 PTFE

N/A
195349

N/A 0.103 in2.62 mm

N/A

N/A 202.87 mm7.987 in

N/A 0.003 in0.08 mm

N/A 0.045 in1.14 mm

N/A -171

N/A Seal Guides

-172 PTFE

N/A
195350

N/A 0.103 in2.62 mm

N/A

N/A 209.22 mm8.237 in

N/A 0.003 in0.08 mm

N/A 0.050 in1.25 mm

N/A -172

N/A Seal Guides

-173 PTFE

N/A
195351

N/A 0.103 in2.62 mm

N/A

N/A 215.57 mm8.487 in

N/A 0.003 in0.08 mm

N/A 0.050 in1.25 mm

N/A -173

N/A Seal Guides

-174 PTFE

N/A
195352

N/A 0.103 in2.62 mm

N/A

N/A 221.92 mm8.737 in

N/A 0.003 in0.08 mm

N/A 0.050 in1.25 mm

N/A -174

N/A Seal Guides

-175 PTFE

N/A
195353

N/A 0.103 in2.62 mm

N/A

N/A 228.27 mm8.987 in

N/A 0.003 in0.08 mm

N/A 0.050 in1.25 mm

N/A -175

N/A Seal Guides

-176 PTFE

N/A
195354

N/A 0.103 in2.62 mm

N/A

N/A 234.62 mm9.237 in

N/A 0.003 in0.08 mm

N/A 0.055 in1.40 mm

N/A -176

N/A Seal Guides