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		                             National Stock Number: 3020-00-528-7120
  Federal Supply Class: 3020
  National Item Identification Number: 005287120
  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:
 | 3237902 | 55380 | HATCH & KIRK, INC. |  | 3237902 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV |   
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  Techincal Specification:
 | BODY STYLE | PLAIN, SOLID |  | BORE NOMINAL DIAMETER | 9.0615 INCHES BOTH ENDS |  | BORE STYLE | W/ KEYWAY BOTH ENDS |  | FACE NOMINAL WIDTH | 1.4990 INCHES |  | HARDNESS RATING | 89.0 ROCKWELL C MINIMUM  AND 96.0 ROCKWELL C MAXIMUM OVERALL |  | HELIX ANGLE | 27.3217 DEGREES |  | KEYWAY NOMINAL WIDTH | 0.7485 INCHES BOTH ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE  AND AISI/SAE 1035 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | STEEL COMP 1035 OVERALL |  | PITCH DIAMETER | 10.8000 INCHES NOMINAL |  | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 4.7718 INCHES BOTH ENDS |  | NOMINAL OUTSIDE DIAMETER | 11.084 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | SPECIAL FEATURES | FIGURE 1 STAMPED ON CENTER LINE OF TOOTH 173 DEG 49 MIN FROM CENTER LINE OF KEYWAY |  | STYLE DESIGNATOR | HUBLESS |  | TEETH QUANTITY | 54 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH DIRECTION | RIGHT |  | TOOTH FORM | STANDARD |   
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