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NSN: 3040-00-001-1720
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Part Numbers

Item Number Item Description
123LM10179-501 Bell Crank
123LM10088-1 Bell Crank

Master Requirement Codes

Code Translation
ABXV The length of a straight line which passes through the center of a circular bore, and terminates at the circumference.
ADGE A measurement of the longest dimension of a bore.
CBBL Those features, not otherwise specified, which may be required for proper functioning of the item.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
FEAT Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
SFTT The metallic, nonmetallic, and/or chemical properties with which the item is plated, dipped, and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

123LM10088-1 Bell Crank

Cage 26512

Technical Definition

Bell Crank, also referenced with federal logistics item name code 22321 - 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).

Technical Characteristics

Bore Diameter (ABXV):
1.063 inches minimum and 1.065 inches maximum
Bore Length (ADGE):
1.438 inches nominal
Features Provided (CBBL):
Fulcrum bore and lubrication fitting accommodation
Material (MATT):
Aluminum alloy
Special Features (FEAT):
Fsc app data: nose tow, catapult, acft
Surface Treatment (SFTT):

National Stock Number (NSN)