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		                        | National Stock Number:
 3020-00-709-1972
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 007091972
 
 Description:
 GEAR,HELICAL
 
 Detail:
 A GEAR, CYLINDRICAL IN FORM, WITH TEETH ON THE OUTER SURFACE AT AN ANGLE TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, HELICAL:
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 Manufacturer Information:
 
 | 158733 | 57712 | TELEMECHANICS INC |  | 158733 | 64959 | AMERICAN TELEPHONE AND TELEGRAPH CO |  | 158733 | 70408 | AT AND T CORP | 
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 Techincal Specification:
 
 | ATTACHMENT METHOD | MOUNTING HOLE |  | BODY STYLE | PLAIN, SOLID |  | BOLT HOLE CIRCLE NOMINAL DIAMETER | 0.728 INCHES AXIALLY THROUGH HUB FIRST END |  | BORE NOMINAL DIAMETER | 0.500 INCHES BOTH ENDS |  | BORE STYLE | W/ KEYWAY BOTH ENDS |  | FACE NOMINAL WIDTH | 0.125 INCHES |  | HELIX ANGLE | 20.0000 DEGREES |  | HUB NOMINAL DIAMETER | 1.346 INCHES FIRST END |  | HUB STYLE DESIGNATOR | PLAIN FIRST END |  | KEYWAY NOMINAL WIDTH | 0.300 INCHES BOTH ENDS |  | PITCH DIAMETER | 1.8333 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | MOUNTING HOLE NOMINAL DIAMETER | 0.135 INCHES AXIALLY THROUGH HUB FIRST END |  | MOUNTING HOLE TYPE AND QUANTITY | 3 PLAIN AXIALLY THROUGH HUB FIRST END |  | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.485 INCHES BOTH ENDS |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.018 INCHES FIRST END |  | NOMINAL OUTSIDE DIAMETER | 1.9166 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | STYLE DESIGNATOR | PROTRUDING HUB |  | TEETH QUANTITY | 44 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH DIRECTION | RIGHT |  | TOOTH FORM | STANDARD | 
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