3040-00-612-9649 SHOE,WORM Index 1290-00-612-9653 NEEDLE

National Stock Number:
3040-00-612-9650

Federal Supply Class:
3040

National Item Identification Number:
006129650

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:
612965019200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATACIRCLE,AIMING,ANTIAIRCRAFT FIRE CONTROL EQUIPMENT
OVERALL LENGTH3.656 INCHES NOMINAL
MATERIALSTEEL
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
STRAIGHT UNTHREADED LENGTH1.390 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.235 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.247 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.247 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.251 INCHES NOMINAL FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.251 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.438 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.063 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.313 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.328 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.469 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.469 INCHES NOMINAL FIRST END, FOURTH PORTION
WORM BODY LENGTH0.625 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE6 DEG 25 MIN
WORM OUTSIDE DIAMETER0.433 INCHES NOMINAL
WORM PITCH DIAMETER0.3534 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG29.000
WORM THREAD DIRECTIONLEFT-HAND
WORM THREAD LEAD0.125 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.625 INCHES NOMINAL
TEETH HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM


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