Customer Support

Standard Sizes of O Rings

We have wide range of different standard size o-rings in stock. British Standard BS1806 and BS4518, US SAE AS568, Japanese JIS B 2401 German & International standards publications, Because they are so widely used there is a variety of global standards for O-ring dimensions. The most commonly used Imperial size standards are:

Australian Standard AS2842-1986 Fluid Power O-rings and Housings. And the commonly used Metric standards are:

Fitco Seals also supplies:

  • Vulcanised and cold joined O-rings
  • O-ring Cord in Nitrile, EPDM, Viton and Silicone
  • O-ring Backups
  • Quad or X-rings
  • O-ring Kits


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