5365-00-991-6740 SHIM Index 3020-00-991-6742 GEAR,BEVEL

National Stock Number:
3040-00-991-6741

Federal Supply Class:
3040

National Item Identification Number:
009916741

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:
1093065019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
MATERIALSTEEL COMP 4620 OR
STEEL COMP 8617 OR
STEEL COMP 8620 OR
STEEL COMP 8720
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624,FS4617,FS4620,FS8617,FS8620 OR FS8720 FED SPEC ALL MATERIAL RESPONSES
TEETH HARDNESS RATING55.0 ROCKWELL C MINIMUM AND
62.0 ROCKWELL C MAXIMUM
SURFACE TREATMENTOIL
WORM THREAD QUANTITY1
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.3938 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM HELIX ANGLE85 DEG 45 MIN
WORM OUTSIDE DIAMETER1.932 INCHES MINIMUM AND
1.936 INCHES MAXIMUM
WORM PITCH DIAMETER1.687 INCHES NOMINAL
WORM THREAD SECTION LENGTH2.000 INCHES NOMINAL
WORM BODY LENGTH2.000 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
SHAFT LOCATIONBOTH ENDS OF WORM
END SIMILARITYNOT IDENTICAL
STRAIGHT UNTHREADED LENGTH0.874 INCHES NOMINAL FIRST END, FIRST PORTION
0.877 INCHES MINIMUM FIRST END, SECOND PORTION
0.881 INCHES MAXIMUM FIRST END, SECOND PORTION
0.056 INCHES MINIMUM FIRST END, THIRD PORTION
0.060 INCHES MAXIMUM FIRST END, THIRD PORTION
0.125 INCHES NOMINAL FIRST END, FOURTH PORTION
0.856 INCHES NOMINAL SECOND END, FIRST PORTION
0.812 INCHES NOMINAL SECOND END, SECOND PORTION
0.750 INCHES NOMINAL SECOND END, THIRD PORTION
0.725 INCHES MINIMUM SECOND END, FIFTH PORTION
0.745 INCHES MAXIMUM SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.250 INCHES NOMINAL FIRST END, FIRST PORTION
1.377 INCHES MINIMUM FIRST END, SECOND PORTION
1.378 INCHES MAXIMUM FIRST END, SECOND PORTION
1.287 INCHES MINIMUM FIRST END, THIRD PORTION
1.295 INCHES MAXIMUM FIRST END, THIRD PORTION
1.377 INCHES MINIMUM FIRST END, FOURTH PORTION
1.377 INCHES MAXIMUM FIRST END, FOURTH PORTION
1.250 INCHES NOMINAL SECOND END, FIRST PORTION
1.377 INCHES MINIMUM SECOND END, SECOND PORTION
1.378 INCHES MAXIMUM SECOND END, SECOND PORTION
0.873 INCHES MINIMUM SECOND END, THIRD PORTION
0.874 INCHES MAXIMUM SECOND END, THIRD PORTION
0.125 INCHES NOMINAL SECOND END, FIFTH PORTION
UNTHREADED SECTION KEYWAY WIDTH0.1553 INCHES MINIMUM SECOND END, THIRD PORTION
0.1569 INCHES MAXIMUM SECOND END, THIRD PORTION
UNTHREADED SECTION KEYWAY DEPTH0.173 INCHES MINIMUM SECOND END, THIRD PORTION
0.179 INCHES MAXIMUM SECOND END, THIRD PORTION
TAPER LENGTH0.125 INCHES NOMINAL SECOND END, FOURTH PORTION
TAPER LARGEST DIAMETER0.873 INCHES MINIMUM SECOND END, FOURTH PORTION
0.874 INCHES MAXIMUM SECOND END, FOURTH PORTION
TAPER PER FOOT IN INCHES1.248 SECOND END, FOURTH PORTION
KEYWAY WIDTH0.188 INCHES MINIMUM SECOND END, SIXTH PORTION
0.204 INCHES MAXIMUM SECOND END, SIXTH PORTION
KEYWAY DEPTH0.076 INCHES MINIMUM SECOND END, SIXTH PORTION
0.093 INCHES MAXIMUM SECOND END, SIXTH PORTION
SCREW THREAD SERIES DESIGNATORUNF SECOND END, SEVENTH PORTION
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND END, SEVENTH PORTION
THREAD LENGTH0.582 INCHES NOMINAL SECOND END, SEVENTH PORTION
OVERALL LENGTH7.188 INCHES NOMINAL
SPECIAL FEATURESFOURTH PORTION,FIRST END,CHAMFERED TO 0.062 BY 45 DEG
FSC APPLICATION DATATRAVERSING MECHANISM,MACHINE GUN
THE MANUFACTURERS DATA
MANUFACTURERS CODE19207
DESIGN CONTROL REFERENCE10930650


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