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OneMonroe PTFE O-Rings offer exceptional reliability and durability, making them the preferred sealing solution for industries that require top-tier performance. Crafted from polytetrafluoroethylene (PTFE), a material renowned for its high resistance to chemicals, extreme temperatures, and wear, these O-rings are engineered to maintain a solid seal in even the harshest conditions. Their robust properties make them ideal for industries like aerospace, automotive, chemical processing, and food and beverage, where high precision and durability are paramount. The AS568 PTFE O-Rings are available in various sizes and meet industry-standard specifications, ensuring compatibility with an extensive range of applications and equipment.

Our PTFE O-Rings are meticulously manufactured to provide superior anti-friction and anti-stick properties, ensuring smooth operation and longevity in demanding environments. Thanks to PTFE’s non-reactive nature, these O-rings excel in applications where traditional rubber O-rings would quickly degrade or lose effectiveness. They can withstand a wide range of temperatures, from -100°F to over 500°F, and resist aggressive chemicals, including solvents, acids, and bases, which could compromise other materials. These unique attributes make OneMonroe PTFE O-Rings a highly reliable choice for applications requiring minimal maintenance and reduced downtime.

At OneMonroe, we are committed to providing high-quality sealing solutions that meet our customers’ specific needs. Our AS568 PTFE O-Rings are available in standard and custom sizes to ensure a precise fit in your applications. In addition to superior performance, our O-rings feature a low coefficient of friction, making them perfect for dynamic applications with moving parts. With OneMonroe, you can count on expert craftsmanship, stringent quality controls, and a dedication to innovation, ensuring that your equipment operates smoothly and efficiently, even under the most demanding conditions. Choose OneMonroe PTFE O-Rings for a reliable, long-lasting seal in any environment.

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

AS568 Buna O-Rings
Unit of Measure
Items AS568 Buna O-Rings
-901 PTFE-70
AS568 PTFE O-Rings - 900 Series
AS568 Buna O-Rings
-902 PTFE-70
AS568 PTFE O-Rings - 900 Series
AS568 Buna O-Rings
-903 PTFE-70
AS568 PTFE O-Rings - 900 Series
AS568 Buna O-Rings
-904 PTFE-70
AS568 PTFE O-Rings - 900 Series
AS568 Buna O-Rings
-905 PTFE-70
AS568 PTFE O-Rings - 900 Series
Type N/A AS568 Standard O-Rings
Material N/A PTFE
Cross Section Width N/A 0.056 in N/A 0.064 in N/A 0.064 in N/A 0.072 in N/A 0.072 in
Durometer N/A 70
Inside Diameter N/A 0.185 in N/A 0.239 in N/A 0.301 in N/A 0.351 in N/A 0.414 in
Cross Section Tolerance +/- N/A 0.003 in
Inside Diameter Tolerance +/- N/A 0.005 in
Size Reference - AS568 N/A -901 N/A -902 N/A -903 N/A -904 N/A -905
Units of Measure N/A Imperial
Tube Size O.D. N/A 3/32 N/A 1/8 N/A 3/16 N/A 1/4 N/A 5/16
O-Ring Industries N/A O-rings are used in the military, automotive, aerospace and agriculture industries.