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		                        | National Stock Number:
 3020-01-474-9912
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 014749912
 
 Description:
 GEAR,WORM
 
 Detail:
 A GEAR WITH TEETH ON ITS OUTER SURFACE IN THE FORM OF HELICAL THREADS.
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 Manufacturer Information:
 
 | 752-7068468-13 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | H832-1651 | 96169 | ELECTRIC BOAT CORPORATION | 
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 Techincal Specification:
 
 | FACE TYPE | STRAIGHT |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | WEAPONS HANDLING ATHWARTSHIP DRIVE GEARBOX SUB ASSSEMBLY AND DETAILS |  | PRESSURE ANGLE | 30.0000 DEGREES |  | SPECIAL FEATURES | DIAMETRAL PITCH IS 20/40; TYPE-FLAT ROOT SIDE FIT -MODIFIED, CLASS 5; INVOLUTE FORM DIAMETER IS 1.054; MAJOR DIAMETER IS 1.072 MAX; CIRCULAR SPACE WIDTH MAXIMUM ACTUAL IS .0813 AND MINIMUM EFFECTIVE IS .0785 | 
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