4820-00-164-5401 VALVE,BUTTERFLY Index 2520-00-164-5407 BLOCK

National Stock Number:
3020-00-164-5402

Federal Supply Class:
3020

National Item Identification Number:
001645402

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:
180502-171791CURTISS-WRIGHT CONTROLS, INC.


Techincal Specification:
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING54.0 ROCKWELL C MINIMUM AND
56.0 ROCKWELL C MAXIMUM OVERALL
CONSTRUCTIONSOLID
DESIGN TYPEBEVEL FIRST GEAR
SPUR SECOND GEAR
NOMINAL OUTSIDE DIAMETER1.962 INCHES FIRST GEAR
0.665 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH1.180 INCHES
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.350 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
1 STEP BOTH ENDS
HUB NOMINAL LENGTH0.337 INCHES FIRST END
0.330 INCHES SECOND END
0.113 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER0.450 INCHES BETWEEN FIRST AND SECOND GEAR
0.472 INCHES BOTH ENDS
THE MANUFACTURERS DATA
MANUFACTURERS CODE71791
DESIGN CONTROL REFERENCE180502-1


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