3040-00-039-8406, WORM SHAFT

National Stock Number:
3040-00-039-8406

Federal Supply Class:
3040

National Item Identification Number:
000398406

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:

500099	08638	ALLIANT TECHSYSTEMS INC ORDNANCE SYSTEMS DIV
500099	94580	HONEYWELL INTERNATIONAL INC.
7369332	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
FSC APPLICATION DATA	TURRET ELECTRICAL CONTROL,COMBAT VEHICLE
OVERALL LENGTH	4.250 INCHES NOMINAL
MATERIAL	STEEL
SHAFT LOCATION	BOTH ENDS OF WORM
WORM BODY LENGTH	0.906 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM HELIX ANGLE	3 DEG,34 MIN
WORM OUTSIDE DIAMETER	0.562 INCHES NOMINAL
WORM PITCH DIAMETER	0.500 INCHES NOMINAL
WORM THREAD DIRECTION	RIGHT-HAND
WORM PRESSURE ANGLE IN DEG	14.500
WORM THREAD LEAD	0.0982 INCHES NOMINAL
WORM THREAD QUANTITY	8
WORM THREAD SECTION LENGTH	0.813 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH	1.506 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH	1.845 INCHES MINIMUM SECOND END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH	1.851 INCHES MAXIMUM SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.365 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.3743 INCHES MINIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.3748 INCHES MAXIMUM FIRST END, SECOND PORTION
UNTHREADED SECTION PIN HOLE DIAMETER	0.1562 INCHES MINIMUM SECOND END, FIRST PORTION
UNTHREADED SECTION PIN HOLE DIAMETER	0.1567 INCHES MAXIMUM SECOND END, SECOND PORTION

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