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National Stock Number:
1680-00-700-2081
Federal Supply Class:
1680
National Item Identification Number:
007002081
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:
| S6140-62124 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| BORE DIAMETER | 1.814 INCHES MINIMUM AND 1.815 INCHES MAXIMUM | | BORE LENGTH | 1.939 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SPECIAL FEATURES | CASEHARDENING INDICATOR, NOT CASEHARDENED; ANGLE IN DEG IS 90.0; ACCESSORY COMPONENTS AND QUANTITY IS BUSHING,4; BEARINGS NOT INCLUDED; COUNTERBORE FEATURE NOT INCLUDED; FULCRUM BORE PROVIDED; FULCRUM SHAFT NOT INCLUDED; FULCRUM SPLIT HUB NOT PROVIDED; CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND AA ARM END HOLE IS 3.703 INCHES NOMINAL; AA ARM END RADIUS IS 0.750 INCHES NOMINAL; AA ARM END HOLE DIAMETER IS 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM; CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND BB ARM END HOLE IS 4.000 IN NOMINAL; BB ARM RADIUS IS 0.750 IN NOMINAL; AA ARM END THICKNESS IS 1.344 IN NOMINAL; BB ARM THICKNESS IS 1.375 IN NOMINAL; AA ARM SLOT DEPTH IS 1.750 IN NOMINAL; BB ARM END HOLE DIA IS 0.312 IN MIN. AND 0.313 IN MAX; BB ARM END THICKNESS IS 1.344 IN NOMINAL; BB ARM SLOT DEPTH IS 1.750 IN NOMINAL; AA ARM SLOT WIDTH IS 0.903 IN MIN AND 0.913 IN MAX; BB ARM HORIZONTAL SLOT WIDTH IS 0.903 IN MIN AND 0.913 IN MAX | | STYLE DESIGNATOR | CLEVIS ENDS | | SURFACE TREATMENT | ANODIZE |
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