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		                        | National Stock Number:
 3020-00-752-0768
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 007520768
 
 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:
 
 | 7520768 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | 
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 Techincal Specification:
 
 | BODY STYLE | WEBBED, OFFSET, SOLID |  | BORE NOMINAL DIAMETER | 3.0000 INCHES BOTH ENDS |  | BORE STYLE | PLAIN BOTH ENDS |  | FACE NOMINAL WIDTH | 1.625 INCHES |  | HARDNESS RATING | 59.0 ROCKWELL C MINIMUM  AND 62.0 ROCKWELL C MAXIMUM OVERALL |  | HELIX ANGLE | 21.7894 DEGREES |  | HUB NOMINAL DIAMETER | 3.812 INCHES FIRST END |  | HUB NOMINAL DIAMETER | 3.812 INCHES SECOND END |  | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-13048 FS4812 OR FS4815 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |  | PITCH DIAMETER | 10.5898 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.099 INCHES FIRST END |  | NOMINAL OUTSIDE DIAMETER | 10.742 INCHES |  | NOMINAL OVERALL LENGTH | 2.724 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | SPECIAL FEATURES | 27EXTERNAL CLUTCH TEETH ON HUB |  | STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |  | TEETH QUANTITY | 59 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH FORM | STANDARD |  | TOOTH DIRECTION | LEFT | 
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