3020-00-243-9974 GEAR,HELICAL Index 4820-00-243-9976 VALVE,SAFETY RELIEF

National Stock Number:
3020-00-243-9975

Federal Supply Class:
3020

National Item Identification Number:
002439975

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:
330070555380HATCH & KIRK, INC.
330070572915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV


Techincal Specification:
BODY STYLEPLAIN, SOLID
FACE NOMINAL WIDTH1.999 INCHES
HARDNESS RATING10.0 ROCKWELL C MINIMUM AND 20.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE27.3217 DEGREES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE DIAMETER11.0840 INCHES
PITCH DIAMETER10.8000 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORHUBLESS
TEETH QUANTITY54
TEETH TYPESINGLE HELIX
TOOTH FORMSTUB
TOOTH DIRECTIONRIGHT


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