3020-00-389-4727 GEAR,WORM Index 6320-00-389-4731 JIG,SCREW PIN

National Stock Number:
3040-00-389-4728

Federal Supply Class:
3040

National Item Identification Number:
003894728

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:
P50176323667SMITHS DETECTION INC.
V40255PC1923667SMITHS DETECTION INC.


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATADUMMY,TRANSMITTER,SHIPS SPEED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108-52, GRADE 1050 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 1050
OVERALL LENGTH4.594 INCHES NOMINAL
SHAFT LOCATIONBOTH ENDS OF WORM
STRAIGHT UNTHREADED LENGTH0.063 INCHES NOMINAL ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH0.063 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED LENGTH0.406 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH0.594 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED LENGTH0.9687 INCHES NOMINAL SECOND SHAFT
STRAIGHT UNTHREADED LENGTH1.875 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER0.1760 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER0.1765 INCHES MAXIMUM FIRST STEP
STRAIGHT UNTHREADED SECTION DIAMETER0.1775 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER0.1870 INCHES MINIMUM SECOND SHAFT
STRAIGHT UNTHREADED SECTION DIAMETER0.1875 INCHES MAXIMUM SINGLE SHAFT
STRAIGHT UNTHREADED SECTION DIAMETER0.1860 INCHES MINIMUM D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.1865 INCHES MAXIMUM E ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.313 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.313 INCHES NOMINAL RECEPTACLE PLATE
WORM BODY LENGTH2.906 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE4 DEG 46 MIN
WORM OUTSIDE DIAMETER0.580 INCHES MINIMUM AND 0.583 INCHES MAXIMUM
WORM PITCH DIAMETER0.497 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
WORM THREAD DIRECTIONRIGHT-HAND
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.131 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.625 INCHES NOMINAL


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