How to measure O-Rings:
  • The I.D.(inside diameter) is measured from the inside wall across. The greatest distance measured will be the inside diameter.
  • The width(cross section or thickness) is measured from the side of the o-ring. Most common widths are 1/16", 3/32", 1/8", 3/16", and 1/4".
  • Sizing charts are available for $22.

O-rings come in a variety of materials. Each material has its own application.

Common materials:

  • The most common material that o-rings are made from is Nitrile Buna-N. Other common materials are viton, silicone, and EPDM.
  • O-Rings are available in a variety of colors, but most require long lead times and sizable minimums.

Kits - metric, standard, and Japanese kits are available in a variety of sizes and compounds. We also make custom kits.

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