1355-01-029-1868 GYRO,DIRECTIONAL DI Index 1355-01-029-1870 CONTROL BOARD ASSEM

National Stock Number:
3020-01-029-1869

Federal Supply Class:
3020

National Item Identification Number:
010291869

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:
537AS56230003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
BORE STYLEW/COUNTERBORE SECOND END
BORE NOMINAL DIAMETER0.875 INCHES BOTH ENDS
CONSTRUCTIONSOLID
COUNTERBORE NOMINAL DIAMETER1.210 INCHES SECOND END
COUNTERBORE NOMINAL DEPTH0.070 INCHES SECOND END
DESIGN TYPESPUR ALL GEARS
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL DIAMETER1.220 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.130 INCHES BETWEEN FIRST AND SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL OUTSIDE DIAMETER1.770 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.795 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH0.860 INCHES


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