3020-00-073-6646 GEAR CLUSTER Index 3020-00-073-6648 GEAR CLUSTER

National Stock Number:
3020-00-073-6647

Federal Supply Class:
3020

National Item Identification Number:
000736647

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:
187917603956NORTHROP GRUMMAN SYSTEMS CORPORATION
187917656232LOCKHEED MARTIN CORPORATION


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.1875 INCHES BOTH ENDS
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HUB NOMINAL DIAMETER0.3125 INCHES SECOND END
HUB STYLE DESIGNATORPINNED SECOND END
HUB NOMINAL LENGTH0.250 INCHES SECOND END
MATERIALALUMINUM ALLOY FIRST GEAR
MATERIALSTEEL CORROSION RESISTING SHAFT/HUB
MATERIALSTEEL CORROSION RESISTING SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.7708 INCHES FIRST GEAR
NOMINAL OUTSIDE DIAMETER0.453 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.562 INCHES
NOMINAL THREAD SIZE0.086 INCHES BOTH ENDS
SPECIAL FEATURESMTG HOLES 90 DEGS APART
SURFACE TREATMENTANODIZE FIRST GEAR
SURFACE TREATMENTPASSIVATE SECOND GEAR
SURFACE TREATMENTPASSIVATE SHAFT/HUB


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