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		                             National Stock Number: 3020-00-385-7971
  Federal Supply Class: 3020
  National Item Identification Number: 003857971
  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:
 | 8402966 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |   
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  Techincal Specification:
 | BACKLASH DESIGNATION | GRADE C |  | BODY STYLE | WEBBED, WITH LIGHTENING HOLES |  | BORE STYLE | STRAIGHT SPLINE BOTH ENDS |  | COUNTERBORE NOMINAL DIAMETER | 2.502 INCHES FIRST END |  | COUNTERBORE NOMINAL DEPTH | 1.125 INCHES FIRST END |  | FACE NOMINAL WIDTH | 2.125 INCHES |  | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM  AND 32.0 ROCKWELL C MAXIMUM OVERALL |  | HUB NOMINAL DIAMETER | 3.250 INCHES FIRST END |  | HUB NOMINAL DIAMETER | 3.250 INCHES SECOND END |  | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |  | PITCH DIAMETER | 10.0000 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.438 INCHES BOTH ENDS |  | NOMINAL OUTSIDE DIAMETER | 10.249 INCHES |  | NOMINAL OVERALL LENGTH | 3.000 INCHES |  | PRECISION CLASSIFICATION | QUALITY NUMBER 9 |  | PRESSURE ANGLE | 20.0000 DEGREES |  | SPLINE QUANTITY | 16 BOTH ENDS |  | STYLE DESIGNATOR | PROTRUDING HUBS |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |  | SURFACE TREATMENT | OXIDE OVERALL |  | TEETH QUANTITY | 60 |  | SPECIAL FEATURES | SPLINE MINOR DIA. 2.149 IN. NOM |  | TOOTH FORM | STANDARD |   
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