3020-00-778-3988 GEAR CLUSTER Index 4820-00-778-3990 STEM,NEEDLE VALVE

National Stock Number:
3020-00-778-3989

Federal Supply Class:
3020

National Item Identification Number:
007783989

Description:
GEAR CLUSTER

Detail:
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see GEARSHAFT (as modified). Excludes GEAR SUBASSEMBLY, SPEED DECREASER.


Manufacturer Information:
863379918876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 22,1/2H FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB
QQ-B-613,COMP 24 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
QQ-B-626,COMP 22,1/2H FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
SPUR SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.456 INCHES FIRST GEAR
0.415 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.207 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 8 ALL GEARS
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.188 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN FIRST END
HUB NOMINAL LENGTH0.0280 INCHES FIRST END
HUB NOMINAL DIAMETER0.360 INCHES FIRST END
THE MANUFACTURERS DATA
MANUFACTURERS CODE18876
DESIGN CONTROL REFERENCE8633799


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