5935-00-204-9502 CONNECTOR,PLUG,ELECTRICAL Index 3020-00-204-9505 GEAR,SPUR

National Stock Number:
3020-00-204-9504

Federal Supply Class:
3020

National Item Identification Number:
002049504

Description:
GEAR,ANTIBACKLASH,SPUR

Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.


Manufacturer Information:
63351-00101351SOUTHERN GEAR & MACHINE INC
63351-0010AHP5CURTISS-WRIGHT CONTROLS, INC.
63351-10AHP5CURTISS-WRIGHT CONTROLS, INC.


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.250 INCHES FIRST END
FACE NOMINAL WIDTH0.125 INCHES
HUB NOMINAL DIAMETER0.313 INCHES FIRST END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB
MATERIALALUMINUM ALLOY 2024 FIRST GEAR
MATERIALALUMINUM ALLOY 2024 SECOND GEAR
MATERIALSTEEL COMP 303 HUB
MATERIALSTEEL CORROSION RESISTING SPRING
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.313 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.343 INCHES
PITCH DIAMETER1.3115 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM
PRECISION CLASSIFICATIONQUALITY NUMBER 10
PRESSURE ANGLE20.0000 DEGREES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION
SPECIAL FEATURESFOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR
SURFACE TREATMENTANODIZE FIRST GEAR
SURFACE TREATMENTANODIZE SECOND GEAR
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY84
TOOTH FORMSTANDARD


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