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		                        | National Stock Number:
 3020-00-177-8239
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 001778239
 
 Description:
 GEAR,SPUR
 
 Detail:
 A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.
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 Manufacturer Information:
 
 | 7983315 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | 
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 Techincal Specification:
 
 | BODY STYLE | PLAIN, SOLID |  | END NOMINAL DIAMETER | 0.586 INCHES FIRST END |  | END NOMINAL LENGTH | 0.361 INCHES FIRST END |  | FACE NOMINAL WIDTH | 0.500 INCHES |  | FIRST STEP NOMINAL DIAMETER | 0.591 INCHES FIRST END |  | FIRST STEP NOMINAL LENGTH | 0.828 INCHES FIRST END |  | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM  AND 32.0 ROCKWELL C MAXIMUM OVERALL |  | HUB STYLE DESIGNATOR | PLAIN FIRST END |  | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE  AND AISI/SAE 1040 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | STEEL COMP 1040 OVERALL |  | PITCH DIAMETER | 1.3750 INCHES NOMINAL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.375 INCHES FIRST END |  | NOMINAL OUTSIDE DIAMETER | 1.495 INCHES |  | NOMINAL OVERALL LENGTH | 1.875 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | SECOND STEP NOMINAL DIAMETER | 1.063 INCHES FIRST END |  | SECOND STEP NOMINAL LENGTH | 0.186 INCHES FIRST END |  | STYLE DESIGNATOR | PROTRUDING HUB |  | TEETH QUANTITY | 22 |  | TOOTH FORM | STANDARD | 
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