3020-00-289-7488 GEAR,WORM Index 3020-00-289-7490 GEAR,WORM

National Stock Number:
3020-00-289-7489

Federal Supply Class:
3020

National Item Identification Number:
002897489

Description:
GEAR,WORM

Detail:
A GEAR WITH TEETH ON ITS OUTER SURFACE IN THE FORM OF HELICAL THREADS.


Manufacturer Information:
458-80515280NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION
458-80526916NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE NOMINAL DIAMETER0.188 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.687 INCHES
HELIX ANGLE51.0000 DEGREES
HUB NOMINAL DIAMETER0.360 INCHES FIRST END
HUB STYLE DESIGNATORPLAIN FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER0.4380 INCHES NOMINAL
MATERIALSTEEL OVERALL
MOUNTING HOLE NOMINAL DIAMETER0.052 INCHES TRANSVERSELY THROUGH HUB FIRST END
MOUNTING HOLE TYPE AND QUANTITY1 THREADED AND 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.188 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER0.500 INCHES
NOMINAL OVERALL LENGTH0.875 INCHES
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENTPASSIVATE OVERALL
THREAD FORM DIRECTIONRIGHT-HAND
THREAD FORM QUANTITY2


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