3040-00-914-5177, WORM SHAFT

National Stock Number:
3040-00-914-5177

Federal Supply Class:
3040

National Item Identification Number:
009145177

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:

8707582-1

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

MATERIAL	STEEL COMP 4140 OR
	STEEL COMP 8640 OR
	STEEL COMP 8740 OR
	STEEL COMP 9440
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-13048, FS4140, FS8640, FS8740, FS4140 OR FS9440 MIL SPEC ALL MATERIAL RESPONSES
TEETH HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	35.0 ROCKWELL C MAXIMUM
SHAFT HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	35.0 ROCKWELL C MAXIMUM
WORM THREAD QUANTITY	1
WORM PRESSURE ANGLE IN DEG	27.000
WORM THREAD LEAD	0.875 INCHES NOMINAL
WORM THREAD DIRECTION	RIGHT-HAND
WORM HELIX ANGLE	4 DEG 57 MIN
WORM OUTSIDE DIAMETER	3.776 INCHES NOMINAL
WORM PITCH DIAMETER	3.216 INCHES NOMINAL
WORM THREAD SECTION LENGTH	3.750 INCHES NOMINAL
WORM BODY LENGTH	7.326 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
SHAFT LOCATION	BOTH ENDS OF WORM
END SIMILARITY	NOT IDENTICAL
STRAIGHT UNTHREADED LENGTH	0.125 INCHES NOMINAL FIRST END, FIRST PORTION
	0.875 INCHES NOMINAL FIRST END, SECOND PORTION
	1.125 INCHES NOMINAL FIRST END, THIRD PORTION
	0.921 INCHES NOMINAL FIRST END, FOURTH PORTION
	0.125 INCHES NOMINAL SECOND END, FIRST PORTION
	0.875 INCHES NOMINAL SECOND END, SECOND PORTION
	1.031 INCHES NOMINAL SECOND END, THIRD PORTION
	1.437 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.750 INCHES NOMINAL FIRST END, FIRST PORTION
	1.771 INCHES NOMINAL FIRST END, SECOND PORTION
	1.767 INCHES NOMINAL FIRST END, THIRD PORTION
	1.500 INCHES NOMINAL FIRST END, FOURTH PORTION
	1.750 INCHES NOMINAL SECOND END, FIRST PORTION
	1.771 INCHES NOMINAL SECOND END, SECOND PORTION
	1.767 INCHES NOMINAL SECOND END, THIRD PORTION
	1.500 INCHES NOMINAL SECOND END, FOURTH PORTION
UNTHREADED SECTION KEYWAY WIDTH	0.3720 INCHES MINIMUM AND
	0.3750 INCHES MAXIMUM FIRST END, FOURTH PORTION
UNTHREADED SECTION KEYWAY DEPTH	0.218 INCHES NOMINAL FIRST END, FOURTH PORTION
	0.379 INCHES NOMINAL SECOND END, FOURTH PORTION
OVERALL LENGTH	17.594 INCHES NOMINAL
SPECIAL FEATURES	1/2-20 UNF-2B THREADED HOLE 7/8 IN. DEEP IN END WITH SHORTEST LENGTH OF STEP
FSC APPLICATION DATA	WINCH,VEHICULAR MOUNTED
THE MANUFACTURERS DATA
MANUFACTURERS CODE	19207
DESIGN CONTROL REFERENCE	8707582-1

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