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		                             National Stock Number: 3020-00-517-3910
  Federal Supply Class: 3020
  National Item Identification Number: 005173910
  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:
 | 3265920 | 55380 | HATCH & KIRK, INC. |  | 3265920 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV |   
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  Techincal Specification:
 | BODY STYLE | WEBBED, SOLID |  | BORE STYLE | SERRATED BOTH ENDS |  | COUNTERBORE NOMINAL DIAMETER | 1.3750 INCHES BOTH ENDS |  | COUNTERBORE NOMINAL DEPTH | 1.000 INCHES BOTH ENDS |  | FACE NOMINAL WIDTH | 2.000 INCHES |  | HELIX ANGLE | 45.0000 DEGREES |  | HUB NOMINAL DIAMETER | 2.488 INCHES BOTH ENDS |  | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | MS-288-72915 MIL STD SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | COPPER ALLOY OVERALL |  | PITCH DIAMETER | 4.9497 INCHES NOMINAL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.188 INCHES BOTH ENDS |  | NOMINAL OVERALL LENGTH | 4.375 INCHES |  | NOMINAL OUTSIDE DIAMETER | 5.281 INCHES |  | PRESSURE ANGLE | 14.5000 DEGREES |  | SERRATION PITCH DIAMETER | 1.2190 INCHES NOMINAL BOTH ENDS |  | SERRATION QUANTITY | 48 BOTH ENDS |  | STYLE DESIGNATOR | PROTRUDING HUBS |  | TEETH QUANTITY | 21 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH FORM | STANDARD |  | TOOTH DIRECTION | LEFT |   
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