Search the world’s biggest O-ring warehouse stock


Search in our stock for the dimensions needed.

We serve our customers from the world's largest O-ring warehouse (45.000 positions kept in stock). You can search the COG O-Ring warehouse for your required sealing solution in one click.

For the search, enter the O-ring inner diameter d1 and the cord diameter d2. If necessary, you can narrow down your search by selecting the required material.  Example: Inner diameter of 10 mm and a cord diameter of 1,5 mm please enter 10x1,5 mm.

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Our inventory is updated daily (intermediate sale of items and stock differences reserved). We only sell to business customers (no sales to private individuals!).

Dear customer and business partner,

Our office will be working with a skeleton staff between Christmas and the New Year.

On December the 23rd and December the 30th as well as on January the 2nd we will be available from 9 a. m. to 3 p. m. (CET). On January the 3rd you can reach us between 9 a. m. to 2 p.m. (CET).

Our office will be closed from December the 24th to 27th, 2019 as well as on December the 31st and January the 1st, 2020. You can reach our complete team again on January the 6th.

We wish you a Merry Christmas and a happy New Year.

Your COG Team

O-ring warehouse overview


Our exceptionally high readiness to deliver has good reasons:

  • The world’s largest O-ring warehouse 
  • Over 45,000 items kept in stock for immediate delivery
  • Professional use of the most modern storage and communication technology
  • All essential materials for O-ring and elastomer seal technology are available (including FKM/FPM, FFKM/FFPM, FEPM, NBR, VMQ and many more…) plus lots of special materials (including PTFE, FEP- and PFA-coated)
  • Orders placed by 3 p.m. (CET) for in-stock items are dispatched on the same day
  • Current stock levels viewable online (updated daily)