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:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATAMOUNT,TELESCOPE
MATERIALSTEEL CORROSION RESISTING
OVERALL LENGTH4.410 INCHES NOMINAL
SCREW THREAD SERIES DESIGNATORUNF FIRST END
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
SHAFT THREAD DIRECTIONRIGHT-HAND HUB CAP
STRAIGHT UNTHREADED LENGTH1.750 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.240 INCHES MINIMUM SECOND MATING END
STRAIGHT UNTHREADED SECTION DIAMETER0.240 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER0.250 INCHES MAXIMUM FIRST STEP
STRAIGHT UNTHREADED SECTION DIAMETER0.250 INCHES MAXIMUM THIRD MATING END
STRAIGHT UNTHREADED SECTION DIAMETER0.277 INCHES MINIMUM TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER0.279 INCHES MAXIMUM AXIALLY AT EACH END
STRAIGHT UNTHREADED SECTION DIAMETER0.310 INCHES MINIMUM D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.310 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.310 INCHES MINIMUM RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER0.311 INCHES MAXIMUM E ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.3150 INCHES MAXIMUM INNER CUP
STRAIGHT UNTHREADED SECTION DIAMETER0.320 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.320 INCHES MAXIMUM SEPARATING PIN
STRAIGHT UNTHREADED SECTION DIAMETER0.3146 INCHES MINIMUM INNER BUSHING
STRAIGHT UNTHREADED SECTION DIAMETER0.340 INCHES MAXIMUM SINGLE SHAFT
STRAIGHT UNTHREADED SECTION DIAMETER0.330 INCHES MINIMUM SECOND SHAFT
STRAIGHT UNTHREADED LENGTH0.1115 INCHES MAXIMUM THIRD MATING END
STRAIGHT UNTHREADED LENGTH0.1015 INCHES MINIMUM SECOND MATING END
STRAIGHT UNTHREADED LENGTH0.105 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED LENGTH0.130 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED LENGTH0.2125 INCHES MINIMUM RECEPTACLE PLATE
STRAIGHT UNTHREADED LENGTH0.215 INCHES MAXIMUM SINGLE SHAFT
STRAIGHT UNTHREADED LENGTH0.205 INCHES MINIMUM SECOND SHAFT
STRAIGHT UNTHREADED LENGTH0.250 INCHES MAXIMUM AXIALLY AT EACH END
STRAIGHT UNTHREADED LENGTH0.250 INCHES MAXIMUM INNER CUP
STRAIGHT UNTHREADED LENGTH0.240 INCHES MINIMUM INNER BUSHING
STRAIGHT UNTHREADED LENGTH0.240 INCHES MINIMUM TERMINAL BOX
STRAIGHT UNTHREADED LENGTH0.2425 INCHES MAXIMUM SEPARATING PIN
STRAIGHT UNTHREADED LENGTH0.500 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH0.510 INCHES MAXIMUM FIRST STEP
SURFACE TREATMENTPASSIVATE
TEETH HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
THREAD LENGTH0.261 INCHES NOMINAL HUB CAP
WORM BODY LENGTH0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
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 PRESSURE ANGLE IN DEG14.500
WORM THREAD DIRECTIONLEFT-HAND
WORM THREAD LEAD0.125 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM


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