3020-00-689-6818 GEAR,HELICAL Index 3020-00-689-6821 GEAR,SPUR

National Stock Number:
3020-00-689-6820

Federal Supply Class:
3020

National Item Identification Number:
006896820

Description:
GEAR,SPUR

Detail:
A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.


Manufacturer Information:
239B551H0179500WESTINGHOUSE ELECTRIC CORP
239B551H0197942NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
MATERIALCOPPER ALLOY 360 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,ALLOY 360,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TEETH QUANTITY36
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 10 OR
QUALITY NUMBER 11
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER0.7500 INCHES NOMINAL
NOMINAL OVERALL LENGTH0.406 INCHES
NOMINAL OUTSIDE DIAMETER0.797 INCHES
FACE NOMINAL WIDTH0.156 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATORPINNED FIRST END
HUB NOMINAL DIAMETER0.500 INCHES FIRST END
BODY STYLEPLAIN, SOLID
ATTACHMENT METHODMOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY1 THREADED TRANSVERSELY THROUGH HUB, FIRST END
MOUNTING HOLE THREAD SERIES DESIGNATORUNC TRANSVERSELY THROUGH HUB, FIRST END
MOUNTING HOLE NOMINAL THREAD SIZE0.138 INCHES TRANSVERSELY THROUGH HUB, FIRST END
MOUNTING HOLE THREAD QUANTITY PER INCH32 TRANSVERSELY THROUGH HUB, FIRST END
THE MANUFACTURERS DATA
MANUFACTURERS CODE97942
DESIGN CONTROL REFERENCE239B551H01


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