3020-00-989-7904 GEAR,HELICAL Index 3020-00-989-7906 GEAR,SPUR

National Stock Number:
3020-00-989-7905

Federal Supply Class:
3020

National Item Identification Number:
009897905

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:


Manufacturer Information:
A1827542498DAR ELECTRONICS INC DBA NATIONAL RADIO CO


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER0.2500 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.125 INCHES
HELIX ANGLE45.0000 DEGREES
HUB STYLE DESIGNATORPLAIN FIRST END
HUB NOMINAL DIAMETER0.500 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
MOUNTING HOLE THREAD SERIES DESIGNATORUNC TRANSVERSELY THROUGH HUB, FIRST END
MOUNTING HOLE TYPE AND QUANTITY1 THREADED TRANSVERSELY THROUGH HUB, FIRST END
MOUNTING HOLE NOMINAL THREAD SIZE0.138 INCHES TRANSVERSELY THROUGH HUB, FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.2200 INCHES
PITCH DIAMETER1.1780 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENTPASSIVATE OVERALL
TEETH QUANTITY40
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONLEFT
TOOTH FORMSTANDARD


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