Tech Bulletin JIS O-Ring Sizing Table

picture of JIS o-ring sizing chart

JIS B 2401 is a Japanese Industrial Standard for O-Ring sizes. This standard is categorized into four series based on their application.

  • Series P are used for Dynamic sealing applications
  • Series G are used for Static sealing applications
  • Series V are used for Vacuum applications
  • Series S are used for Slim hardware