2530-00-679-8018 SPINDLE,IDLER SUPPO Index 3020-00-679-8021 GEAR,HELICAL

National Stock Number:
3020-00-679-8020

Federal Supply Class:
3020

National Item Identification Number:
006798020

Description:
GEAR,HELICAL

Detail:
A GEAR, CYLINDRICAL IN FORM, WITH TEETH ON THE OUTER SURFACE AT AN ANGLE TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, HELICAL:


Manufacturer Information:
3020006798020SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
875646919207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
BODY STYLEWEBBED, SOLID
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER1.305 INCHES BOTH ENDS
COUNTERBORE NOMINAL DEPTH2.4060 INCHES SECOND END
COUNTERBORE NOMINAL DIAMETER1.561 INCHES FIRST END
END NOMINAL DIAMETER1.969 INCHES FIRST END
END NOMINAL LENGTH0.844 INCHES FIRST END
FACE NOMINAL WIDTH1.000 INCHES
FIRST GROOVE NOMINAL WIDTH0.031 INCHES FIRST END
FIRST STEP NOMINAL LENGTH0.468 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER2.061 INCHES FIRST END
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE17.9386 DEGREES
HUB NOMINAL DIAMETER1.561 INCHES FIRST END
HUB STYLE DESIGNATOR1 GROOVE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONS-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP TS8615 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END1.450 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER7.058 INCHES
NOMINAL OVERALL LENGTH3.656 INCHES
PITCH DIAMETER6.9197 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
SECOND STEP NOMINAL DIAMETER3.000 INCHES SECOND END
SECOND STEP NOMINAL LENGTH0.138 INCHES SECOND END
SPLINE PITCH DIAMETER1.4000 INCHES NOMINAL BOTH ENDS
SPLINE QUANTITY14 BOTH ENDS
STYLE DESIGNATORPROTRUDING HUBS
TEETH QUANTITY79
TEETH TYPESINGLE HELIX
TOOTH FORMSTUB
TOOTH DIRECTIONLEFT


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