An O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. At Trans-Tech we have a huge range of o-rings in NBR and Viton material. Non-standard o-rings can also be manufactured on forward delivery basis.
We have now added new stock of viton O-Rings of standard imperial sizes, from cross section 1.78mm to 6.99mm. Contact us today!
Engineers may also be interested in other complementary products installed with o-rings. More information can be found below:
  • Oil Seals
  • Bearings
  • Flange gaskets
  • Taper lock bushes

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Standard Imperial O-Ring Sizes
Japanese Standard Metric O-Ring Sizes