5998-00-507-9336 CIRCUIT CARD ASSEMBLY Index 3020-00-507-9341 GEAR,BEVEL

National Stock Number:
3040-00-507-9340

Federal Supply Class:
3040

National Item Identification Number:
005079340

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:
766515019200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
OVERALL LENGTH3.875 INCHES NOMINAL
MATERIALSTEEL
SHAFT HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
WORM PITCH DIAMETER0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD DIRECTIONRIGHT-HAND
WORM THREAD LEAD0.2618 INCHES NOMINAL
WORM THREAD QUANTITY2
WORM THREAD SECTION LENGTH0.750 INCHES NOMINAL
WORM BODY LENGTH2.186 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE9 DEG 28 MIN
WORM OUTSIDE DIAMETER0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM
STRAIGHT UNTHREADED LENGTH0.187 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.187 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.210 INCHES MAXIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.200 INCHES MINIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.219 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.653 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.783 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.886 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.397 INCHES MAXIMUM FIRST END, FIRST PORTION
SURFACE TREATMENTPASSIVATE
TEETH HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
UNTHREADED SECTION PIN HOLE DIAMETER0.1250 INCHES NOMINAL SECOND END, FOURTH PORTION


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