1220-00-084-7897 LIGHT ASSEMBLY Index 1220-00-084-7903 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-084-7901

Federal Supply Class:
3020

National Item Identification Number:
000847901

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:
134006510001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
1340065-9610001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
1340065-9636090LOCKHEED MARTIN LIBRASCOPE CORP
1340065PC9610001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
L310014-31636090LOCKHEED MARTIN LIBRASCOPE CORP


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.188 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.125 INCHES
HUB STYLE DESIGNATORSPLIT SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.302 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.019 INCHES
PITCH DIAMETER1.0000 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 12
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
TEETH QUANTITY96
TOOTH FORMSTANDARD


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