5365-00-223-7168 PLUG,MACHINE THREAD Index 1090-00-223-7170 FASTENER AND RING

National Stock Number:
3040-00-223-7169

Federal Supply Class:
3040

National Item Identification Number:
002237169

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:
857954819200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATAMOUNT,TELESCOPE
MATERIALSTEEL
OVERALL LENGTH2.811 INCHES MINIMUM AND 2.812 INCHES MAXIMUM
SCREW THREAD SERIES DESIGNATORUNF BOTH ENDS
SHAFT HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED LENGTH0.120 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH0.125 INCHES MAXIMUM FIRST STEP
STRAIGHT UNTHREADED LENGTH0.223 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED LENGTH0.372 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED LENGTH0.472 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH0.870 INCHES MINIMUM CONCENTRIC HOLE
STRAIGHT UNTHREADED LENGTH0.880 INCHES MAXIMUM COUNTERBORE
STRAIGHT UNTHREADED SECTION DIAMETER0.149 INCHES NOMINAL CONCENTRIC HOLE
STRAIGHT UNTHREADED SECTION DIAMETER0.180 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.180 INCHES MINIMUM RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER0.190 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER0.190 INCHES MAXIMUM SEPARATING PIN
STRAIGHT UNTHREADED SECTION DIAMETER0.236 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER0.310 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER0.320 INCHES MAXIMUM FIRST STEP
TEETH HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
THREAD LENGTH0.250 INCHES NOMINAL THREADS
UNTHREADED SECTION PIN HOLE DIAMETER0.0625 INCHES NOMINAL CONCENTRIC HOLE
WORM BODY LENGTH0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE4 DEG 47 MIN
WORM OUTSIDE DIAMETER0.365 INCHES MINIMUM AND 0.370 INCHES MAXIMUM
WORM PITCH DIAMETER0.083 INCHES NOMINAL
WORM THREAD DIRECTIONLEFT-HAND
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.083 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM


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