4140-00-995-3268 FAN,CENTRIFUGAL Index 3020-00-995-3270 GEAR CLUSTER

National Stock Number:
3020-00-995-3269

Federal Supply Class:
3020

National Item Identification Number:
009953269

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:
228220010001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
BORE NOMINAL DIAMETER0.375 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
CONSTRUCTIONSOLID
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HUB NOMINAL DIAMETER0.688 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER0.688 INCHES FIRST END
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN FIRST END
HUB NOMINAL LENGTH0.100 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.2170 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 420,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 420 OVERALL
NOMINAL OUTSIDE DIAMETER0.801 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.165 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH0.536 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 12 ALL GEARS
SURFACE TREATMENTPASSIVATE OVERALL


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