2540-01-367-4636 BLADE,WINDSHIELD WIPER Index 4520-01-367-4638 HEATER,WATER,ELECTRIC

National Stock Number:
3040-01-367-4637

Federal Supply Class:
3040

National Item Identification Number:
013674637

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:
1295090119200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
OVERALL LENGTH2.870 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
SPECIAL FEATURESC/O P/NS 12950924,11741742,MS14104-3K,MS16555-604 W/HOLE DIA 0.0621
WORM HELIX ANGLE4 DEG 47 MIN
WORM OUTSIDE DIAMETER0.370 INCHES NOMINAL
WORM PITCH DIAMETER0.083 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.083 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM THREAD SECTION LENGTH0.460 INCHES NOMINAL
SURFACE TREATMENTPASSIVATE


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