5305-00-509-5454 THUMBSCREW Index 1240-00-509-5464 GEAR ASSEMBLY

National Stock Number:
3040-00-509-5462

Federal Supply Class:
3040

National Item Identification Number:
005095462

Description:
WORM SHAFT

Detail:
A DRIVE SHAFT HAVING HELICAL THREAD(S) ON A PORTION OF ITS OUTER SURFACE, MACHINED BEARING SURFACE(S) AND FACILITIES FOR DRIVING (OTHER THAN A HUB) ON ONE OR BOTH ENDS OF SHAFT. DESIGNED TO MATE WITH A CAM, GEAR SECTOR, WORM WHEEL, ETC. INCLUDES ITEMS WITH BEARINGS. EXCLUDES ITEMS HAVING MORE THAN ONE WORM COMPLEMENT OF HELICAL THREADS, ITEMS WITH A SEPARATE COMPLEMENT OF GEAR TEETH, AND GEAR, WORM.


Manufacturer Information:
763232919200US ARMY ARDEC RDECOM


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONCFFC AND CFFK
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATATELESCOPE,PANORAMIC M100S
OVERALL LENGTH2.336 INCHES MINIMUM AND 2.356 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONNITRALLOY MFR REF SINGLE MATERIAL RESPONSE
MATERIALSTEEL UNS J24056
SHAFT HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
WORM PITCH DIAMETER0.3279 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.0656 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
WORM BODY LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE3 DEG 38 MIN 33 SEC
WORM OUTSIDE DIAMETER0.3697 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH0.296 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1562 INCHES MINIMUM SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1566 INCHES MAXIMUM SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1873 INCHES MINIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1873 INCHES MINIMUM SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1876 INCHES MAXIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.1876 INCHES MAXIMUM SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.240 INCHES MINIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.240 INCHES MINIMUM SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.260 INCHES MAXIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.260 INCHES MAXIMUM SECOND END, FIRST PORTION
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTOXIDE
TEETH HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM


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