3040-00-776-8063, WORM SHAFT

National Stock Number:
3040-00-776-8063

Federal Supply Class:
3040

National Item Identification Number:
007768063

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:

2520007768063	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
6762340	24617	GENERAL MOTORS CORP
7768063	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

MATERIAL	STEEL
TEETH HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND
	32.0 ROCKWELL C MAXIMUM
SHAFT HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND
	32.0 ROCKWELL C MAXIMUM
WORM THREAD QUANTITY	8
WORM PRESSURE ANGLE IN DEG	20.000
WORM THREAD LEAD	0.400 INCHES NOMINAL
WORM THREAD DIRECTION	RIGHT-HAND
WORM HELIX ANGLE	20 DEG 4 MIN
WORM OUTSIDE DIAMETER	0.737 INCHES MINIMUM AND
	0.747 INCHES MAXIMUM
WORM PITCH DIAMETER	0.625 INCHES NOMINAL
WORM THREAD SECTION LENGTH	1.750 INCHES NOMINAL
WORM BODY LENGTH	1.875 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
SHAFT LOCATION	BOTH ENDS OF WORM
END SIMILARITY	NOT IDENTICAL
STRAIGHT UNTHREADED LENGTH	0.450 INCHES NOMINAL EITHER END, FIRST PORTION
	1.988 INCHES NOMINAL EITHER END, SECOND PORTION
	0.125 INCHES NOMINAL EITHER END, THIRD PORTION
	2.750 INCHES NOMINAL EITHER END, FOURTH PORTION
	0.625 INCHES NOMINAL EITHER END, FIFTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.435 INCHES MINIMUM EITHER END, FIRST PORTION
	0.436 INCHES MAXIMUM EITHER END, FIRST PORTION
	0.737 INCHES MINIMUM EITHER END, SECOND PORTION
	0.747 INCHES MAXIMUM EITHER END, SECOND PORTION
	1.000 INCHES MINIMUM EITHER END, THIRD PORTION
	1.060 INCHES MAXIMUM EITHER END, THIRD PORTION
	0.609 INCHES MINIMUM EITHER END, FOURTH PORTION
	0.619 INCHES MAXIMUM EITHER END, FOURTH PORTION
	0.623 INCHES MINIMUM EITHER END, FIFTH PORTION
	0.624 INCHES MAXIMUM EITHER END, FIFTH PORTION
SCREW THREAD SERIES DESIGNATOR	UNF EITHER END, SIXTH PORTION
SHAFT THREAD DIRECTION	RIGHT-HAND EITHER END, SIXTH PORTION
THREAD LENGTH	1.125 INCHES NOMINAL EITHER END, SIXTH PORTION
SECTION SHAPE	SQUARE EITHER END, SEVENTH PORTION
SHAFT SECTION SIZE	0.438IN. ACROSS FLATS
OVERALL LENGTH	9.188 INCHES NOMINAL
FSC APPLICATION DATA	ADJUSTMENT MECHANIS,TRANSMISSION,COMBAT TANK
THE MANUFACTURERS DATA
MANUFACTURERS CODE	24617
DESIGN CONTROL REFERENCE	6762340

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