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Part Number

Part Number:
NSN:
NIIN:
Item Name:
BELL CRANK

Definition:

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).

CAGE Information

Code Company
80070 LOCKHEED MARTIN CORPORATION DBA LOCK

Federal Supply Class

Title

MISCELLANEOUS AIRCRAFT ACCESSORI

Inclusions:

INCLUDES CONTROL ASSEMBLIES, PUSH-PULL; BRACE, POSITIONING CARGO RAMP STOWED ON BOARD; COCKPIT MOUNTED CONTROL QUADRANTS; ACTUATORS, ELECTRO-MECHANICAL AND MECHANICAL; VENTILATORS; RELIEF TUBES; MAP HOLDERS; AERIAL GLIDER TOWING ACCESSORIES ATTACHED TO AIRCRAFT; BELTS, SAFETY AND LAP; HARNESS, SHOULDER AND SAFETY; LITTER ATTACHING SUPPORTS;ELECTRIC WINDSHIELD WIPERS;AIRCRAFT ONBOARD INERT GAS GENERATORS;AIRCRAFT FURNITURE;AIRCRAFT MOUNTED WINCHES AND HOISTS;IN-FLIGHT REFUELING SYSTEM COMPONENTS, INCLUDING FUEL COMPONENTS;AIRCRAFT CURTAINS;CABLE TENSION REGULATORS;SUN VISORS;REAR-VIEW MIRRORS;MECHANICAL TRANSMISSIONS, GEARBOXES AND CONSTANT SPEED DRIVES SPECIALLY DESIGNED FOR AIRCRAFT.

Exclusions:

EXCLUDES ENGINE MOUNTED CONTROL ASSEMBLIES; FITTED COVERS, AIRCRAFT PYLONS; HELICOPTER ROTER BRAKE SYSTEM COMPONENTS; HELICOPTER AUTOMATIC STABILIZATION EQUIPMENT.

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ABXV BORE DIAMETER 0.250 INCHES NOMINAL
CZLM CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL 1.210 INCHES NOMINAL 2ND END
STYL STYLE DESIGNATOR FLAT, ONE OR MORE HOLES BOTH ARMS
ADGE BORE LENGTH 0.080 INCHES NOMINAL
CZLM CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL 1.790 INCHES NOMINAL 1ST END
CZLN END HOLE/BALL DIAMETER 0.125 INCHES NOMINAL 1ST END

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