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		                        | National Stock Number:
 1680-00-789-4976
 
 Federal Supply Class:
 1680
 
 National Item Identification Number:
 007894976
 
 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:
 
 | 114C3319-1 | 77272 | THE BOEING COMPANY |  | 114C3319-1 | 81205 | THE BOEING COMPANY |  | 114C3319-20 | 77272 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | MATERIAL | MAGNESIUM |  | STYLE DESIGNATOR | RAISED FACE PIVOT HOLE, CLEVIS BOTH ENDS |  | CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL | 3.170 INCHES NOMINAL 1ST END |  |  | 6.500 INCHES NOMINAL 2ND END |  | END HOLE/BALL DIAMETER | 0.438 INCHES MINIMUM AND |  |  | 0.439 INCHES MAXIMUM 1ST END |  |  | 0.376 INCHES MINIMUM AND |  |  | 0.377 INCHES MAXIMUM 2ND END |  | BORE LENGTH | 2.312 INCHES NOMINAL |  | BORE DIAMETER | 0.960 INCHES NOMINAL |  | COUNTERBORE DIAMETER | 1.123 INCHES MINIMUM AND |  |  | 1.124 INCHES MAXIMUM |  | COUNTERBORE DEPTH | 0.325 INCHES NOMINAL |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 81205 |  | DESIGN CONTROL REFERENCE | 114C3319-1 | 
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