3020-00-989-8456 GEAR,SPUR Index 3020-00-989-8458 GEAR,SPUR

National Stock Number:
3020-00-989-8457

Federal Supply Class:
3020

National Item Identification Number:
009898457

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:
A16942-1ISSUED42498DAR ELECTRONICS INC DBA NATIONAL RADIO CO


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BACKLASH DESIGNATIONGRADE C
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER0.125 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.032 INCHES
HUB NOMINAL DIAMETER0.250 INCHES FIRST END
HUB STYLE DESIGNATORPLAIN FIRST END
MATERIALCOPPER ALLOY OVERALL
PITCH DIAMETER0.9375 INCHES NOMINAL
MOUNTING HOLE NOMINAL THREAD SIZE0.086 INCHES AXIALLY THROUGH HUB FIRST END
MOUNTING HOLE THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH HUB FIRST END
MOUNTING HOLE TYPE AND QUANTITY2 THREADED AXIALLY THROUGH HUB FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.187 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER0.969 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 10 OR QUALITY NUMBER 11
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
TEETH QUANTITY60
SPECIAL FEATURESTHD HOLES SPACED 120 DEG APART
TOOTH FORMSTANDARD


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