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		                             National Stock Number: 3020-00-289-7963
  Federal Supply Class: 3020
  National Item Identification Number: 002897963
  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:
 | 13ADD8660APC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | 13ADD8660APC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | 13ADD8660BPC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | 15ADD8660APC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | 15ADD8660APC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | 13ADD8660BPC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | ADD8652B | 7PZX0 | FAIRBANKS MORSE, LLC |  | MAADG8660APC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | AVP10S61-01035PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | AVP10S61-01036PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 81223S41-977PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 81223S41-978PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 81223S4105-538642PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | ADD8652B | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | MADG8660APC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | MADG8660BPC24 | 7PZX0 | FAIRBANKS MORSE, LLC |  | SS228S41-0611PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | SS228S41-0612PC24 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | MAADG8660APC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | MADG8660BPC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |  | MADG8660APC24 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |   
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  Techincal Specification:
 | BODY STYLE | WEBBED, WITH LIGHTENING HOLES |  | BORE NOMINAL DIAMETER | 1.3250 INCHES FIRST END |  | BORE STYLE | W/ KEYWAY BOTH ENDS |  | END NOMINAL LENGTH | 0.125 INCHES FIRST END |  | FACE NOMINAL WIDTH | 1.375 INCHES |  | FIRST STEP NOMINAL DIAMETER | 2.375 INCHES FIRST END |  | FIRST STEP NOMINAL LENGTH | 0.250 INCHES FIRST END |  | HARDNESS RATING | 27.0 ROCKWELL C MINIMUM  AND 32.0 ROCKWELL C MAXIMUM OVERALL |  | HELIX ANGLE | 23.2200 DEGREES |  | HUB STYLE DESIGNATOR | 1 STEP FIRST END |  | KEYWAY NOMINAL WIDTH | 0.500 INCHES BOTH ENDS |  | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,ALLOY NO. 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |  | PITCH DIAMETER | 7.2960 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.375 INCHES FIRST END |  | NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.125 INCHES SECOND END |  | NOMINAL OUTSIDE DIAMETER | 7.5177 INCHES |  | PRESSURE ANGLE | 20.0000 DEGREES |  | STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |  | TEETH QUANTITY | 45 |  | TEETH TYPE | SINGLE HELIX |  | TOOTH DIRECTION | LEFT |   
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