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		                        | National Stock Number:
 3020-00-573-4460
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 005734460
 
 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:
 
 | 60A520021AA | 61147 | PATERSON GEAR MOTOR DIV OF AMTECH INC |  | 60F204758PC13 | 61147 | PATERSON GEAR MOTOR DIV OF AMTECH INC | 
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 Techincal Specification:
 
 | PRESSURE ANGLE | 20.0000 DEGREES |  | PROPRIETARY CHARACTERISTICS | PACS |  | NOMINAL OUTSIDE DIAMETER | 1.7456 INCHES |  | SPECIAL FEATURES | 45.0 DEG BY 0.038 IN. DEEP CHAMFER BOTH ENDS OF BORE |  | STYLE DESIGNATOR | HUBLESS |  | TEETH QUANTITY | 53 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH DIRECTION | RIGHT |  | TOOTH FORM | STANDARD |  | BACKLASH DESIGNATION | GRADE A |  | BODY STYLE | PLAIN, SOLID |  | BORE STYLE | PLAIN BOTH ENDS |  | BORE NOMINAL DIAMETER | 0.4995 INCHES BOTH ENDS |  | FACE NOMINAL WIDTH | 0.500 INCHES |  | HARDNESS RATING | 89.0 ROCKWELL B MINIMUM OVERALL AND 96.0 ROCKWELL B MAXIMUM OVERALL |  | HELIX ANGLE | 23.0000 DEGREES |  | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL AND AISI/SAF 1141 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | III MATERIAL | STEEL COMP 1141 OVERALL |  | PITCH DIAMETER | 1.6694 INCHES NOMINAL |  | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | 
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