5998-00-135-2920 CIRCUIT CARD ASSEMBLY Index 5210-00-135-2923 INDICATOR,DIAL

National Stock Number:
3020-00-135-2922

Federal Supply Class:
3020

National Item Identification Number:
001352922

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:
595874-101351SOUTHERN GEAR & MACHINE INC
595874-123266SECS, INC.
595874-196214RAYTHEON COMPANY


Techincal Specification:
BORE NOMINAL DIAMETER0.090 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.104 INCHES
HUB NOMINAL DIAMETER0.312 INCHES FIRST END
HUB STYLE DESIGNATORPINNED FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,T3 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 END0.221 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.348 INCHES
PITCH DIAMETER1.3315 INCHES MINIMUM AND 1.3330 INCHES MAXIMUM
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR
SURFACE TREATMENTANODIZE FIRST GEAR
SURFACE TREATMENTANODIZE SECOND GEAR
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY160
TOOTH FORMSTANDARD


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