3040-01-145-4531, BELL CRANK

National Stock Number:
3040-01-145-4531

Federal Supply Class:
3040

National Item Identification Number:
011454531

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).

Manufacturer Information:

70400-02207-102	78286	SIKORSKY AIRCRAFT CORPORATION
70400-02207-102	81996	U S ARMY AVIATION AND MISSILE COMMAND

Techincal Specification:

SURFACE TREATMENT	ANODIZE
STYLE DESIGNATOR	CLEVIS ENDS
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL	3.757 INCHES NOMINAL 1ST END
	4.981 INCHES NOMINAL 2ND END
END HOLE/BALL DIAMETER	0.3145 INCHES MINIMUM AND
	0.3155 INCHES MAXIMUM 1ST END
BORE LENGTH	2.083 INCHES MINIMUM AND
	2.103 INCHES MAXIMUM
BORE DIAMETER	1.9995 INCHES MINIMUM AND
	2.0000 INCHES MAXIMUM
COUNTERBORE DIAMETER	1.9995 INCHES MINIMUM AND
	2.0000 INCHES MAXIMUM
COUNTERBORE DEPTH	0.250 INCHES MINIMUM AND
	0.260 INCHES MAXIMUM
SPECIAL FEATURES	REMOVE ONE SEAL FROM BEARING IN BB ARM AND INSTALL BEARING WITH SEAL SIDE FACING OUT
THE MANUFACTURERS DATA
MANUFACTURERS CODE	81996
DESIGN CONTROL REFERENCE	70400-02207-102

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