O-Ring
For 57 mm airspeed indicator or variometer.  This o-ring seals the instrument and is mounted behind the glass plate on the front of the instrument. 

Their cross-section is square shaped, not circular.

 - Note: This o-ring is smaller than 57 mm.  The approximate inner diameter is 48 mm.


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Winter-9012-57mm, Winter, O-Ring

  • Brand: Winter
  • Product Code: Winter-9012-57mm
  • Availability: In Stock
  • $1.00


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Tags: oring, o-ring