3040-00-517-7756, WORM SHAFT

National Stock Number:
3040-00-517-7756

Federal Supply Class:
3040

National Item Identification Number:
005177756

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:

5177756

19200

US ARMY ARDEC RDECOM

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
FSC APPLICATION DATA	TELESCOPE,ELBOW,ANTIAIRCRAFT FIRE CONTROL EQUIPMENT
MATERIAL	STEEL
OVERALL LENGTH	4.110 INCHES NOMINAL
SCREW THREAD SERIES DESIGNATOR	UNC STEAM INLET
SHAFT HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SHAFT LOCATION	BOTH ENDS OF WORM
SHAFT THREAD DIRECTION	RIGHT-HAND STEAM INLET
STRAIGHT UNTHREADED LENGTH	0.047 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH	0.047 INCHES NOMINAL THREADS
STRAIGHT UNTHREADED LENGTH	0.160 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED LENGTH	0.462 INCHES NOMINAL ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH	0.730 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED LENGTH	0.811 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED LENGTH	0.853 INCHES NOMINAL CONCENTRIC HOLE
STRAIGHT UNTHREADED SECTION DIAMETER	0.245 INCHES NOMINAL THREADS
STRAIGHT UNTHREADED SECTION DIAMETER	0.2504 INCHES NOMINAL CONCENTRIC HOLE
STRAIGHT UNTHREADED SECTION DIAMETER	0.340 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER	0.344 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER	0.370 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER	0.375 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER	0.625 INCHES NOMINAL ALL THREADED PORTIONS
SURFACE TREATMENT	PASSIVATE
TEETH HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
THREAD LENGTH	0.313 INCHES NOMINAL STEAM INLET
UNTHREADED SECTION PIN HOLE DIAMETER	0.1090 INCHES NOMINAL CONCENTRIC HOLE
WORM BODY LENGTH	1.000 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM HELIX ANGLE	5 DEG 52 MIN
WORM OUTSIDE DIAMETER	0.622 INCHES NOMINAL
WORM PITCH DIAMETER	0.518 INCHES NOMINAL
WORM THREAD DIRECTION	LEFT-HAND
WORM PRESSURE ANGLE IN DEG	29.000
WORM THREAD LEAD	0.1666 INCHES NOMINAL
WORM THREAD QUANTITY	1
WORM THREAD SECTION LENGTH	0.944 INCHES NOMINAL

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