3020-00-178-0063 GEAR,SPUR Index 4710-00-178-0069 TUBE ASSEMBLY,METAL

National Stock Number:
3020-00-178-0067

Federal Supply Class:
3020

National Item Identification Number:
001780067

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:
117D247505606GENERAL DYNAMICS-OTS, INC.
117D247526420ASTRO GEAR AND INSTRUMENT CO INC


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.626 INCHES BOTH ENDS
CONSTRUCTIONSOLID
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL DIAMETER0.810 INCHES SECOND END
HUB NOMINAL DIAMETER1.020 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN SECOND END
HUB NOMINAL LENGTH0.2100 INCHES SECOND END
HUB NOMINAL LENGTH0.840 INCHES BETWEEN FIRST AND SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 COMP 4140 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE DIAMETER1.827 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH1.670 INCHES
NOMINAL OUTSIDE DIAMETER3.157 INCHES FIRST GEAR
PRECISION CLASSIFICATIONQUALITY NUMBER 8 FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171,FINISH 5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL


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