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		                             National Stock Number: 3020-00-557-7547
  Federal Supply Class: 3020
  National Item Identification Number: 005577547
  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:
 | 5577547 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |  | 89-5-5 | 72447 | DANA COMMERCIAL VEHICLE MANUFACTURING, LLC |   
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  Techincal Specification:
 | BODY STYLE | PLAIN, SOLID |  | BORE NOMINAL DIAMETER | 3.126 INCHES BOTH ENDS |  | BORE STYLE | PLAIN BOTH ENDS |  | FACE NOMINAL WIDTH | 2.750 INCHES |  | HARDNESS RATING | 59.0 ROCKWELL C MINIMUM  AND 62.0 ROCKWELL C MAXIMUM OVERALL |  | HELIX ANGLE | 17.1461 DEGREES |  | HUB NOMINAL DIAMETER | 4.125 INCHES SECOND END |  | HUB NOMINAL DIAMETER | 4.125 INCHES FIRST END |  | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | ED STD 66,AISI/SAE 4815 FED STD 5TH MATERIAL RESPONSE OVERALL |  | PITCH DIAMETER | 4.5349 INCHES NOMINAL |  | MATERIAL | STEEL COMP 4815 OVERALL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.218 INCHES SECOND END |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.532 INCHES FIRST END |  | NOMINAL OVERALL LENGTH | 3.500 INCHES |  | NOMINAL OUTSIDE DIAMETER | 4.783 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | STYLE DESIGNATOR | PROTRUDING HUBS |  | TEETH QUANTITY | 26 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH FORM | STANDARD |  | TOOTH DIRECTION | LEFT |   
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