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OneMonroe AS568 Aflas® O-Rings are designed to meet the demands of the most challenging environments, offering exceptional chemical resistance and high-temperature durability. Crafted from high-performance Aflas® material, these O-rings can withstand temperatures ranging from -14°F to 450°F, making them suitable for applications where extreme conditions are the norm. Unlike standard rubber seals, Aflas® O-rings maintain their integrity in harsh environments, including exposure to oils, acids, alkalis, and amine-based chemicals. They are particularly popular in industries such as automotive, aerospace, chemical processing, and oil & gas, where the combination of high-temperature resistance and chemical resilience is essential for reliable performance.

Engineered with precision, OneMonroe Aflas® O-Rings adhere to the AS568 dimensional standards, ensuring compatibility across a wide range of equipment and machinery. Each O-ring is meticulously manufactured to deliver a tight, effective seal that prevents leaks, even under high-pressure conditions. The unique composition of Aflas® material offers durability beyond what standard rubber O-rings can achieve, providing a solution that reduces maintenance needs and increases operational efficiency. By minimizing the frequency of replacements, these O-rings also help reduce downtime and optimize equipment performance, leading to greater cost savings over time.

OneMonroe is committed to delivering top-quality sealing solutions tailored to meet your specific requirements. Our AS568 Aflas® O-Rings come in various sizes, ensuring that you can find the perfect fit for your equipment. With a reputation for excellence and durability, OneMonroe’s Aflas® O-rings offer unparalleled longevity and reliability, even in the most demanding conditions. Choose OneMonroe for a solution that not only meets industry standards but also sets a new benchmark for quality and performance in extreme applications.

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 Aflas-70
AS568 Aflas O-Rings
AS568 Buna O-Rings
-902 Aflas-70
AS568 Aflas O-Rings
AS568 Buna O-Rings
-903 Aflas-70
AS568 Aflas O-Rings
AS568 Buna O-Rings
-904 Aflas-70
AS568 Aflas O-Rings
AS568 Buna O-Rings
-905 Aflas-70
AS568 Aflas O-Rings
Type N/A AS568 Standard O-Rings
Material N/A Aflas
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 mm0.185 in N/A 0.239 mm0.239 in N/A 0.301 mm0.301 in N/A 0.351 mm0.351 in N/A 0.414 mm0.414 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.