3040-00-408-2468, WORM SHAFT

National Stock Number:
3040-00-408-2468

Federal Supply Class:
3040

National Item Identification Number:
004082468

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:

10681878

18876

U S ARMY AVIATION AND MISSILE COMMAND

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
OVERALL LENGTH	3.470 INCHES NOMINAL
MATERIAL	STEEL CORROSION RESISTING
SCREW THREAD SERIES DESIGNATOR	UNF SECOND END THIRD PORTION
SHAFT LOCATION	BOTH ENDS OF WORM
SHAFT THREAD DIRECTION	RIGHT-HAND SECOND END THIRD PORTION
WORM BODY LENGTH	0.750 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM OUTSIDE DIAMETER	0.582 INCHES NOMINAL
WORM PITCH DIAMETER	0.500 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG	25.000
WORM THREAD DIRECTION	LEFT-HAND
WORM THREAD QUANTITY	4
WORM THREAD SECTION LENGTH	0.670 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH	0.375 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED LENGTH	0.499 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED LENGTH	0.530 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED LENGTH	0.848 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.187 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.245 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.249 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.335 INCHES NOMINAL SECOND END FIRST PORTION
SURFACE TREATMENT	PASSIVATE
THREAD LENGTH	0.360 INCHES NOMINAL SECOND END THIRD PORTION

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