3020-00-705-1657 GEAR CLUSTER Index 3020-00-705-1660 GEAR CLUSTER

National Stock Number:
3020-00-705-1658

Federal Supply Class:
3020

National Item Identification Number:
007051658

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:
330763980064NAVAL SHIP SYSTEMS COMMAND
C311-28092755NORTHROP GRUMMAN SYSTEMS CORP


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.219 INCHES BOTH ENDS
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HUB NOMINAL DIAMETER0.500 INCHES FIRST END
HUB NOMINAL DIAMETER0.927 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPINNED FIRST END
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.062 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.3710 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-639,ALLOY 464 HARD FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 304L FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 304L FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB
MATERIALCOPPER ALLOY FIRST GEAR
MATERIALSTEEL COMP 304L SECOND GEAR
MATERIALSTEEL COMP 304L SHAFT/HUB
NOMINAL OUTSIDE DIAMETER1.042 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.750 INCHES
NOMINAL OUTSIDE DIAMETER4.0417 INCHES FIRST GEAR
PRECISION CLASSIFICATIONQUALITY NUMBER 10 OR QUALITY NUMBER 11 ALL GEARS
SURFACE TREATMENTPASSIVATE SECOND GEAR
SURFACE TREATMENTPASSIVATE SHAFT/HUB


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