3020-00-800-7933 GEAR,SPUR Index 3020-00-800-7939 GEAR,SPUR

National Stock Number:
3020-00-800-7934

Federal Supply Class:
3020

National Item Identification Number:
008007934

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:
800793418876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.312 INCHES BOTH ENDS
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
HUB NOMINAL DIAMETER1.312 INCHES BETWEEN SECOND AND THIRD GEAR
HUB STYLE DESIGNATORPLAIN FIRST END
HUB STYLE DESIGNATORPLAIN SECOND END
HUB NOMINAL LENGTH0.102 INCHES FIRST END
HUB NOMINAL LENGTH0.114 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.413 INCHES SECOND END
MATERIALALUMINUM ALLOY 2024 FIRST GEAR
MATERIALALUMINUM ALLOY 2024 SHAFT/HUB
MATERIALSTEEL COMP 416SE SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.477 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.958 INCHES
NOMINAL OUTSIDE DIAMETER5.792 INCHES FIRST GEAR
SURFACE TREATMENTPASSIVATE SECOND GEAR


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