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		                        | National Stock Number:
 1680-00-700-2158
 
 Federal Supply Class:
 1680
 
 National Item Identification Number:
 007002158
 
 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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 Manufacturer Information:
 
 | S6140-62115 | 78286 | SIKORSKY AIRCRAFT CORPORATION | 
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 Techincal Specification:
 
 | BORE DIAMETER | 1.250 INCHES NOMINAL |  | BORE LENGTH | 5.329 INCHES NOMINAL |  | COUNTERBORE DIAMETER | 1.436 INCHES NOMINAL |  | MATERIAL | ALUMINUM ALLOY | 
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