O-Ring Size Chart Directory

O-Ring Sizes

Selecting the correct o-ring size is crucial for ensuring the effectiveness of your seal. The dimensions of an o-ring, including its cross-sectional diameter (CS) and inner diameter (ID), are key factors that determine its compatibility with the sealing application. A properly sized o-ring will compress slightly in the application to form a tight seal, preventing leaks and ensuring the reliability of your equipment. Our O-Ring Size Chart Directory is designed to guide you through the various o-ring size standards, including AS568, Metric, and JIS, helping you find the exact specifications for your sealing requirements.

• AS568 Standard: The AS568 standard, established by the Society of Automotive Engineers (SAE), is one of the most commonly used size standards in the United States. It includes hundreds of sizes and specifies o-ring dimensions and tolerances.
• Metric Sizes: Metric o-rings are designed to fit the metric dimensions commonly used in international and European equipment. These sizes offer a wide range for various applications, ensuring compatibility with global industrial standards.
• JIS Standard: The Japanese Industrial Standard (JIS) for o-rings specifies sizes commonly used in Japanese-manufactured equipment. It includes unique sizes not found in other size standards, making it essential for equipment requiring specific Japanese dimensions.