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		                        | National Stock Number:
 3020-00-198-4002
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 001984002
 
 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:
 
 | 132180 | 24930 | L3HARRIS TECHNOLOGIES, INC |  | 132180-1 | 24930 | L3HARRIS TECHNOLOGIES, INC | 
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 Techincal Specification:
 
 | BACKLASH DESIGNATION | GRADE C |  | BODY STYLE | PLAIN, SOLID |  | BORE NOMINAL DIAMETER | 0.240 INCHES BOTH ENDS |  | BORE STYLE | PLAIN BOTH ENDS |  | FACE NOMINAL WIDTH | 0.187 INCHES |  | HARDNESS RATING | 75.0 ROCKWELL B MINIMUM  AND 83.0 ROCKWELL B MAXIMUM OVERALL |  | HELIX ANGLE | 45.0000 DEGREES |  | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END |  | HUB STYLE DESIGNATOR | PINNED FIRST END |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | STEEL COMP 303 OVERALL |  | PITCH DIAMETER | 1.7670 INCHES NOMINAL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.219 INCHES FIRST END |  | NOMINAL OUTSIDE DIAMETER | 1.798 INCHES |  | PRECISION CLASSIFICATION | QUALITY NUMBER 10 |  | PRESSURE ANGLE | 20.0000 DEGREES |  | SPECIAL FEATURES | ONE 0.188 IN. LG,0.063 IN. MAX DIA PIN,LOCATED 0.312 IN. FROM CENTER OF GEAR |  | STYLE DESIGNATOR | PROTRUDING HUB |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | TEETH QUANTITY | 80 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH FORM | STANDARD |  | TOOTH DIRECTION | LEFT | 
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