3020-00-073-6647 GEAR CLUSTER Index 3020-00-073-6649 GEAR CLUSTER

National Stock Number:
3020-00-073-6648

Federal Supply Class:
3020

National Item Identification Number:
000736648

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:
187917703956NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
MATERIALALUMINUM ALLOY 2024 FIRST GEAR
MATERIALSTEEL COMP 303 SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.780 INCHES FOURTH GEAR
NOMINAL OUTSIDE DIAMETER0.374 INCHES FIFTH GEAR
NOMINAL OVERALL LENGTH0.406 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 10 OR QUALITY NUMBER 11 FIRST GEAR
SURFACE TREATMENTANODIZE FIRST GEAR
SURFACE TREATMENTPASSIVATE SECOND GEAR


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