5365-00-899-7643 RING,EXTERNALLY THREADED Index 5905-00-899-7645 RESISTOR,VARIABLE,WIRE WOUND,NON

National Stock Number:
3040-00-899-7644

Federal Supply Class:
3040

National Item Identification Number:
008997644

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:
858748419200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATAMOUNT,TELESCOPE
OVERALL LENGTH2.156 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-315, ALLOY 52S, COND F FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 5052
SHAFT HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
STRAIGHT UNTHREADED LENGTH0.156 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.188 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.188 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.875 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.3748 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.3750 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.6872 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.875 INCHES NOMINAL SECOND END FIRST PORTION
SURFACE TREATMENTANODIZE
TEETH HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
WORM BODY LENGTH0.750 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE5 DEG 50 MIN.
WORM OUTSIDE DIAMETER0.625 INCHES NOMINAL
WORM PITCH DIAMETER0.5188 INCHES NOMINAL
WORM THREAD DIRECTIONRIGHT-HAND
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.1666 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.750 INCHES NOMINAL


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