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:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATATRAVERSING MECHANISM,MACHINE GUN
KEYWAY DEPTH0.076 INCHES MINIMUM SECOND END, SIXTH PORTION
KEYWAY DEPTH0.093 INCHES MAXIMUM SECOND END, SIXTH PORTION
KEYWAY WIDTH0.188 INCHES MINIMUM SECOND END, SIXTH PORTION
KEYWAY WIDTH0.204 INCHES MAXIMUM SECOND END, SIXTH PORTION
OVERALL LENGTH7.188 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624,FS4617,FS4620,FS8617,FS8620 OR FS8720 FED SPEC ALL MATERIAL RESPONSES
MATERIALSTEEL COMP 4620 OR STEEL COMP 8617 OR STEEL COMP 8620 OR STEEL COMP 8720
SCREW THREAD SERIES DESIGNATORUNF SECOND END, SEVENTH PORTION
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND END, SEVENTH PORTION
SPECIAL FEATURESFOURTH PORTION,FIRST END,CHAMFERED TO 0.062 BY 45 DEG
WORM BODY LENGTH2.000 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE85 DEG 45 MIN
WORM OUTSIDE DIAMETER1.932 INCHES MINIMUM AND 1.936 INCHES MAXIMUM
WORM PRESSURE ANGLE IN DEG14.500
WORM PITCH DIAMETER1.687 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM THREAD LEAD0.3938 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH2.000 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH0.056 INCHES MINIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.060 INCHES MAXIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.125 INCHES NOMINAL FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED LENGTH0.725 INCHES MINIMUM SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED LENGTH0.745 INCHES MAXIMUM SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED LENGTH0.750 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.812 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.856 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.874 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.881 INCHES MAXIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.877 INCHES MINIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.125 INCHES NOMINAL SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.873 INCHES MINIMUM SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.874 INCHES MAXIMUM SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.287 INCHES MINIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.295 INCHES MAXIMUM FIRST END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.250 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.250 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.377 INCHES MAXIMUM FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.377 INCHES MINIMUM FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.377 INCHES MINIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.377 INCHES MINIMUM SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.378 INCHES MAXIMUM FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.378 INCHES MAXIMUM SECOND END, SECOND PORTION
SURFACE TREATMENTOIL
TAPER PER FOOT IN INCHES1.248 SECOND END, FOURTH PORTION
TEETH HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM
TAPER LARGEST DIAMETER0.873 INCHES MINIMUM SECOND END, FOURTH PORTION
TAPER LARGEST DIAMETER0.874 INCHES MAXIMUM SECOND END, FOURTH PORTION
TAPER LENGTH0.125 INCHES NOMINAL SECOND END, FOURTH PORTION
THREAD LENGTH0.582 INCHES NOMINAL SECOND END, SEVENTH PORTION
UNTHREADED SECTION KEYWAY DEPTH0.179 INCHES MAXIMUM SECOND END, THIRD PORTION
UNTHREADED SECTION KEYWAY DEPTH0.173 INCHES MINIMUM SECOND END, THIRD PORTION
UNTHREADED SECTION KEYWAY WIDTH0.1553 INCHES MINIMUM SECOND END, THIRD PORTION
UNTHREADED SECTION KEYWAY WIDTH0.1569 INCHES MAXIMUM SECOND END, THIRD PORTION


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