6145-00-789-0819 CABLE,POWER,ELECTRICAL Index 3040-00-789-0821 GEARSHAFT,SPUR

National Stock Number:
3020-00-789-0820

Federal Supply Class:
3020

National Item Identification Number:
007890820

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:
908548618876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
MATERIALALUMINUM ALLOY 6061 AND
COPPER ALLOY SHAFT/HUB
ALUMINUM ALLOY 6061 FIRST GEAR
ALUMINUM ALLOY 6061 SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,T6 FED SPEC 1ST MATERIAL RESPONSE SHAFT/HUB
QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
SPUR SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.290 INCHES FIRST GEAR
0.832 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.437 INCHES
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
PLAIN BOTH ENDS
HUB NOMINAL LENGTH0.125 INCHES BETWEEN FIRST AND SECOND GEAR
0.031 INCHES BOTH ENDS
HUB NOMINAL DIAMETER0.688 INCHES BETWEEN FIRST AND SECOND GEAR
0.500 INCHES BOTH ENDS
FURNISHED ITEMS AND QUANTITY1 EXTERNALLY LUBRICATED BEARING


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