National Stock Number: 1680-00-788-4148
  Federal Supply Class: 1680
  National Item Identification Number: 007884148
  Description: BELL CRANK
  Detail: An item in the form of two arms at an angle, having its fulcrum at the apex of the angle, and used to provide a means of changing the direction or varying the intensity of a pushing or pulling force. See also ARM (as modified); and LEVER (as modified). 
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