5310-00-421-1678 WASHER,FLAT Index 4910-00-421-1682 STONE,HONING

National Stock Number:
3040-00-421-1679

Federal Supply Class:
3040

National Item Identification Number:
004211679

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:
1051278019200US ARMY ARDEC RDECOM


Techincal Specification:
MATERIALSTEEL CORROSION RESISTING
TEETH HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
31.0 ROCKWELL C MAXIMUM
SHAFT HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
31.0 ROCKWELL C MAXIMUM
SURFACE TREATMENTPASSIVATE
WORM THREAD QUANTITY1
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.125 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM HELIX ANGLE5 DEG 11 MIN
WORM OUTSIDE DIAMETER0.513 INCHES MINIMUM AND
0.518 INCHES MAXIMUM
WORM PITCH DIAMETER0.436 INCHES MINIMUM AND
0.438 INCHES MAXIMUM
WORM THREAD SECTION LENGTH0.740 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
WORM BODY LENGTH0.740 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
SHAFT LOCATIONBOTH ENDS OF WORM
END SIMILARITYNOT IDENTICAL
STRAIGHT UNTHREADED LENGTH0.105 INCHES MINIMUM FIRST END, FIRST PORTION
0.130 INCHES MAXIMUM FIRST END, FIRST PORTION
0.240 INCHES MINIMUM FIRST END, SECOND PORTION
0.250 INCHES MAXIMUM FIRST END, SECOND PORTION
0.205 INCHES MINIMUM FIRST END, THIRD PORTION
0.215 INCHES MAXIMUM FIRST END, THIRD PORTION
0.240 INCHES MINIMUM FIRST END, FOURTH PORTION
0.250 INCHES MAXIMUM FIRST END, FOURTH PORTION
0.1015 INCHES MINIMUM FIRST END, SIXTH PORTION
0.1115 INCHES MAXIMUM FIRST END, SIXTH PORTION
0.2125 INCHES MINIMUM SECOND END, FIRST PORTION
0.2425 INCHES MAXIMUM SECOND END, FIRST PORTION
0.500 INCHES MINIMUM SECOND END, SECOND PORTION
0.510 INCHES MAXIMUM SECOND END, SECOND PORTION
1.750 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.310 INCHES MINIMUM FIRST END, FIRST PORTION
0.320 INCHES MAXIMUM FIRST END, FIRST PORTION
0.277 INCHES MINIMUM FIRST END, SECOND PORTION
0.279 INCHES MAXIMUM FIRST END, SECOND PORTION
0.330 INCHES MINIMUM FIRST END, THIRD PORTION
0.340 INCHES MAXIMUM FIRST END, THIRD PORTION
0.3146 INCHES MINIMUM FIRST END, FOURTH PORTION
0.3150 INCHES MAXIMUM FIRST END, FOURTH PORTION
0.240 INCHES MINIMUM FIRST END, SIXTH PORTION
0.250 INCHES MAXIMUM FIRST END, SIXTH PORTION
0.310 INCHES MINIMUM SECOND END, FIRST PORTION
0.320 INCHES MAXIMUM SECOND END, FIRST PORTION
0.240 INCHES MINIMUM SECOND END, SECOND PORTION
0.250 INCHES MAXIMUM SECOND END, SECOND PORTION
0.310 INCHES MINIMUM SECOND END, THIRD PORTION
0.311 INCHES MAXIMUM SECOND END, THIRD PORTION
SCREW THREAD SERIES DESIGNATORUNF FIRST END
SHAFT THREAD DIRECTIONRIGHT-HAND FIRST END, FIFTH PORTION
THREAD LENGTH0.261 INCHES NOMINAL FIRST END, FIFTH PORTION
OVERALL LENGTH4.410 INCHES NOMINAL
FSC APPLICATION DATAMOUNT,TELESCOPE
THE MANUFACTURERS DATA
MANUFACTURERS CODE19200
DESIGN CONTROL REFERENCE10512780


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