3040-00-231-0219, WORM SHAFT

National Stock Number:
3040-00-231-0219

Federal Supply Class:
3040

National Item Identification Number:
002310219

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:

7954478

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
OVERALL LENGTH	17.594 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-13048, 8642, 4140 OR 8740 MIL SPEC ALL MATERIAL RESPONSES
MATERIAL	STEEL COMP 4140 OR STEEL COMP 8642 OR STEEL COMP 8740
SHAFT HARDNESS RATING	C SCALE 17 TO 35 LOCATION NOT OTHERWISE SPECIFIED
SHAFT LOCATION	BOTH ENDS OF WORM
WORM BODY LENGTH	11.066 INCHES MINIMUM AND 11.076 INCHES MAXIMUM
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM HELIX ANGLE	4 DEG 57 MIN
WORM OUTSIDE DIAMETER	3.774 INCHES MINIMUM AND 3.776 INCHES MAXIMUM
WORM PRESSURE ANGLE IN DEG	27.500
WORM PITCH DIAMETER	3.216 INCHES NOMINAL
WORM THREAD DIRECTION	LEFT-HAND
WORM THREAD LEAD	0.875 INCHES NOMINAL
WORM THREAD QUANTITY	1
WORM THREAD SECTION LENGTH	3.750 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH	0.125 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED LENGTH	0.125 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED LENGTH	0.875 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED LENGTH	0.875 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED LENGTH	0.875 INCHES NOMINAL FIRST END FOURTH PORTION
STRAIGHT UNTHREADED LENGTH	1.032 INCHES NOMINAL SECOND END THIRD PORTION
STRAIGHT UNTHREADED LENGTH	1.156 INCHES NOMINAL FIRST END THIRD PORTION
STRAIGHT UNTHREADED LENGTH	1.438 INCHES NOMINAL SECOND END FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.498 INCHES MINIMUM AND 1.500 INCHES MAXIMUM FIRST END FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.498 INCHES MINIMUM AND 1.500 INCHES MAXIMUM SECOND END FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.750 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.750 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.765 INCHES MINIMUM AND 1.767 INCHES MAXIMUM FIRST END THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.7710 INCHES MINIMUM AND 1.7715 INCHES MAXIMUM FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.7710 INCHES MINIMUM AND 1.7715 INCHES MAXIMUM SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.765 INCHES MINIMUM AND 1.767 INCHES MAXIMUM SECOND END THIRD PORTION
TEETH HARDNESS RATING	C SCALE 58 TO 63

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