Monroe
OneMonroe
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Tel: (877) 740-2007
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Email: sales@askmonroe.com
Website: monroeengineering.com
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OneMonroe PTFE O-Rings are crafted for high-performance sealing in the most demanding applications. Made from polytetrafluoroethylene (PTFE), these O-rings are uniquely resistant to chemicals, heat, and environmental stresses, making them a versatile solution across a broad range of industries. Designed with the highest quality standards, OneMonroe PTFE O-Rings provide reliable, long-lasting seals in environments where other materials may falter. With impressive durability and adaptability, our PTFE O-Rings are suitable for use in automotive, aerospace, food processing, and industrial applications that require precise and resilient sealing.

OneMonroe offers a variety of PTFE O-Rings, including specialized JIS PTFE O-Rings, crafted to meet Japanese Industrial Standards. These JIS-compliant O-rings ensure compatibility and high performance in specialized machinery and equipment. Each PTFE O-ring is engineered to resist extreme temperatures, aggressive chemicals, and high pressures, making them ideal for use in hydraulic systems, chemical processing, and high-temperature equipment. With the chemical inertness of PTFE, our O-rings prevent degradation and contamination, delivering exceptional sealing solutions that maintain integrity over extended use.

At OneMonroe, quality is our priority. Our PTFE O-Rings undergo stringent testing and quality control to ensure consistent performance in challenging environments. In addition to standard sizes, we offer custom options to meet unique specifications, providing a tailored sealing solution for every application. Choose OneMonroe PTFE O-Rings for your sealing needs, and experience the benefits of superior material quality, industry compliance, and our commitment to durability and precision. Trust OneMonroe to deliver the high-quality sealing solutions your project demands.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

JIS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Inside Diameter

CSW Tolerance

ID Tolerance

JIS Number

Quantity
P250 PTFE N/A
182181 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 249.5 mm9.823 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-250
P255 PTFE N/A
182182 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 254.5 mm10.020 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-255
P26 PTFE N/A
182183 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 25.70 mm1.012 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-26
P260 PTFE N/A
182184 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 259.5 mm10.217 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-260
P265 PTFE N/A
182185 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 264.5 mm10.413 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-265
P270 PTFE N/A
182186 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 269.5 mm10.610 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-270
P275 PTFE N/A
182187 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 274.50 mm10.807 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-275
P28 PTFE N/A
182188 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 27.70 mm1.091 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-28
P280 PTFE N/A
182189 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 279.50 mm11.004 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-280
P285 PTFE N/A
182190 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 284.50 mm11.201 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-285
P29 PTFE N/A
182191 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 28.70 mm1.130 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29
P29.5 PTFE N/A
182192 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 29.20 mm1.150 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-29.5
P290 PTFE N/A
182193 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 289.50 mm11.398 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-290
P295 PTFE N/A
182194 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 294.50 mm11.594 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-295
P30 PTFE N/A
182195 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 29.70 mm1.169 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-30
P300 PTFE N/A
182196 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 299.50 mm11.791 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-300
P31 PTFE N/A
182197 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 30.70 mm1.209 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31
P31.5 PTFE N/A
182198 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 31.20 mm1.228 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31.5
P315 PTFE N/A
182199 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 314.50 mm12.382 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-315
P32 PTFE N/A
182200 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 31.70 mm1.248 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-32
P320 PTFE N/A
182201 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 319.50 mm12.579 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-320
P335 PTFE N/A
182202 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 334.50 mm13.169 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-335
P34 PTFE N/A
182203 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 33.70 mm1.327 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-34
P340 PTFE N/A
182204 		N/A JIS Standard O-Ring N/A PTFE N/A 0.331 in8.40 mm N/A 339.50 mm13.366 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-340
P35 PTFE N/A
182205 		N/A JIS Standard O-Ring N/A PTFE N/A 0.138 in3.50 mm N/A 34.70 mm1.366 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-35
Unit of Measure
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