5315-00-074-8954 PIN,STRAIGHT,HEADLESS Index 1090-00-074-8965 EXTENSION,SUPPORT

National Stock Number:
3040-00-074-8964

Federal Supply Class:
3040

National Item Identification Number:
000748964

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:
862633819200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
MATERIALSTEEL
OVERALL LENGTH1.850 INCHES MINIMUM AND 1.870 INCHES MAXIMUM
SHAFT HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
STRAIGHT UNTHREADED LENGTH0.062 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED LENGTH0.062 INCHES NOMINAL ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH0.188 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH0.230 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED LENGTH0.250 INCHES MAXIMUM SINGLE SHAFT
STRAIGHT UNTHREADED LENGTH0.240 INCHES MINIMUM SECOND SHAFT
STRAIGHT UNTHREADED LENGTH0.390 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER0.250 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.250 INCHES MINIMUM RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER0.260 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.250 INCHES NOMINAL SECOND SHAFT
STRAIGHT UNTHREADED SECTION DIAMETER0.260 INCHES MAXIMUM SEPARATING PIN
STRAIGHT UNTHREADED SECTION DIAMETER0.330 INCHES MINIMUM TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER0.340 INCHES MAXIMUM AXIALLY AT EACH END
STRAIGHT UNTHREADED SECTION DIAMETER0.374 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.462 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER0.467 INCHES MAXIMUM FIRST STEP
SURFACE TREATMENTPASSIVATE
TEETH HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SPECIAL FEATURESTHIRD PORTION OF SECOND END FACE SLOTTED,0.057 PLUS 0.010 IN. WIDE,0.0625 PLUS 0.0156 IN.DEEP
WORM BODY LENGTH1.328 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE6 DEG 52 MIN
WORM OUTSIDE DIAMETER0.462 INCHES MINIMUM AND 0.467 INCHES MAXIMUM
WORM PITCH DIAMETER0.375 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
WORM THREAD DIRECTIONRIGHT-HAND
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.143 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.750 INCHES NOMINAL


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