3040-00-404-7364, WORM SHAFT

National Stock Number:
3040-00-404-7364

Federal Supply Class:
3040

National Item Identification Number:
004047364

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:

8626318

19200

US ARMY ARDEC RDECOM

Techincal Specification:

MATERIAL	STEEL
SURFACE TREATMENT	PASSIVATE
WORM THREAD QUANTITY	1
WORM PRESSURE ANGLE IN DEG	14.500
WORM THREAD LEAD	0.1854 INCHES NOMINAL
WORM THREAD DIRECTION	RIGHT-HAND
WORM HELIX ANGLE	5 DEG 3 MIN
WORM OUTSIDE DIAMETER	0.787 INCHES NOMINAL
WORM PITCH DIAMETER	0.669 INCHES NOMINAL
WORM THREAD SECTION LENGTH	0.750 INCHES NOMINAL
WORM BODY LENGTH	0.750 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
SHAFT LOCATION	BOTH ENDS OF WORM
END SIMILARITY	NOT IDENTICAL
STRAIGHT UNTHREADED LENGTH	0.715 INCHES NOMINAL FIRST END, FIRST PORTION
	0.875 INCHES NOMINAL SECOND END, FIRST PORTION
	0.250 INCHES NOMINAL SECOND END, SECOND PORTION
	0.031 INCHES NOMINAL SECOND END, THIRD PORTION
	0.459 INCHES NOMINAL SECOND END, FOURTH PORTION
	0.031 INCHES NOMINAL SECOND END, FIFTH PORTION
	0.710 INCHES NOMINAL SECOND END, SIXTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.311 INCHES NOMINAL FIRST END, FIRST PORTION
	0.500 INCHES NOMINAL SECOND END, FIRST PORTION
	0.560 INCHES NOMINAL SECOND END, SECOND PORTION
	0.375 INCHES NOMINAL SECOND END, THIRD PORTION
	0.406 INCHES NOMINAL SECOND END, FOURTH PORTION
	0.406 INCHES NOMINAL SECOND END, FIFTH PORTION
	0.281 INCHES NOMINAL SECOND END, SIXTH PORTION
SCREW THREAD SERIES DESIGNATOR	UNEF SECOND END, SIXTH PORTION
SHAFT THREAD DIRECTION	RIGHT-HAND SECOND END, SIXTH PORTION
THREAD LENGTH	0.329 INCHES NOMINAL SECOND END, SIXTH PORTION
OVERALL LENGTH	4.150 INCHES NOMINAL

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