3020-00-244-1803 GEAR,HELICAL Index 5330-00-244-1806 SEAL,SPECIAL

National Stock Number:
3020-00-244-1804

Federal Supply Class:
3020

National Item Identification Number:
002441804

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:
221515PC410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER1.275 INCHES BOTH ENDS
BORE STYLESTRAIGHT SPLINE BOTH ENDS
COUNTERBORE NOMINAL DEPTH0.500 INCHES FIRST END
COUNTERBORE NOMINAL DIAMETER2.2500 INCHES FIRST END
FACE NOMINAL WIDTH2.125 INCHES
HARDNESS RATING32.1 ROCKWELL C MINIMUM AND 43.1 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE23.0000 DEGREES
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4340 OVERALL
NOMINAL OUTSIDE DIAMETER3.417 INCHES
PITCH DIAMETER3.2500 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
SPLINE QUANTITY6 BOTH ENDS
STYLE DESIGNATORHUBLESS
SPECIAL FEATURESTEETH SURFACES LAPPED,DYNOMICALLY BALANCED
TEETH QUANTITY39
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONLEFT
TOOTH FORMSTANDARD


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