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Parco Re-launches 90-durometer Nitrile Back-up Rings (4900-90)

  • Posted by Parco Inc on February 12, 2008

Ontario, California, February 12, 2008.  Parco, Inc., a leading manufacturer of high performance seals, today re-launched its 90-durometer nitrile back-up rings.  Those back-up rings are made from Parco’s popular compound, 4900-90.

Parco is committed to being the leader in low-cost, general-purpose, 90-durometer nitrile back-up rings.  We’ve quadrupled our inventory and cut our minimums in half.  We are also stocking back-up rings in all 346 Parco standard sizes. The next time you need 90-durometer nitrile back-up rings tomorrow, rely on Parco for available inventory and competitive prices.

For additional information, you can view Parco’s 4900-90 Nitrile Back-up Rings brochure in the Literature section of Parco’s web site.  If you would like to receive a printed copy, simply contact your Parco customer service representative or e-mail us at