3020-00-139-4196 GEAR,SPUR Index 3020-00-139-4198 GEAR,SPUR

National Stock Number:
3020-00-139-4197

Federal Supply Class:
3020

National Item Identification Number:
001394197

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:
537-600-02507421L3HARRIS INTERSTATE ELECTRONICS CORPORATION


Techincal Specification:
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HUB NOMINAL DIAMETER0.1248 INCHES BOTH ENDS
HUB NOMINAL DIAMETER0.312 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.107 INCHES SECOND END
HUB NOMINAL LENGTH0.127 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.166 INCHES FIRST END
HUB STYLE DESIGNATOR1 STEP BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATOR1 STEP FIRST END
HUB STYLE DESIGNATOR1 STEP SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI 416/SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE SHAFT/HUB
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR
MATERIALALUMINUM ALLOY 2024 FIRST GEAR
MATERIALALUMINUM ALLOY 2024 SECOND GEAR
MATERIALSTEEL SHAFT/HUB
NOMINAL OUTSIDE DIAMETER0.850 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER0.8500 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH0.425 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 12 FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR
SURFACE TREATMENTANODIZE ALL GEARS
SURFACE TREATMENTPASSIVATE SHAFT/HUB


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