3020-00-815-7537 GEAR,SPUR Index 3040-00-815-7539 GEARSHAFT,MULTIPLE GEARS

National Stock Number:
3020-00-815-7538

Federal Supply Class:
3020

National Item Identification Number:
008157538

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:
62439806481NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CONSTRUCTIONSOLID
DESIGN TYPESPUR SECOND GEAR
DESIGN TYPESPUR FIRST GEAR
HUB NOMINAL LENGTH0.040 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.285 INCHES FIRST END
HUB NOMINAL LENGTH1.132 INCHES SECOND END
HUB STYLE DESIGNATOR1 STEP BOTH ENDS
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER0.125 INCHES BOTH ENDS
HUB NOMINAL DIAMETER0.330 INCHES BETWEEN FIRST AND SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,COND A MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 303 AND STEEL COMP 303SE OVERALL
NOMINAL OUTSIDE DIAMETER0.400 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.0670 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH1.694 INCHES
SURFACE TREATMENTPASSIVATE OVERALL


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