3040-01-310-6603, WORM SHAFT

National Stock Number:
3040-01-310-6603

Federal Supply Class:
3040

National Item Identification Number:
013106603

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:

1889808	80064	NAVAL SHIP SYSTEMS COMMAND
1889808 PIECE 4	80064	NAVAL SHIP SYSTEMS COMMAND
2640-059 PIECE 4	96169	ELECTRIC BOAT CORPORATION

Techincal Specification:

MATERIAL	NICKEL ALLOY
WORM THREAD QUANTITY	2
WORM PRESSURE ANGLE IN DEG	20.000
WORM THREAD LEAD	0.980 INCHES NOMINAL
WORM THREAD DIRECTION	RIGHT-HAND
WORM HELIX ANGLE	18 DEG 34 MIN
WORM OUTSIDE DIAMETER	1.949 INCHES NOMINAL
WORM PITCH DIAMETER	1.898 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
SHAFT LOCATION	BOTH ENDS OF WORM
END SIMILARITY	NOT IDENTICAL
STRAIGHT UNTHREADED LENGTH	0.969 INCHES NOMINAL FIRST END, FIRST PORTION
	0.375 INCHES NOMINAL FIRST END, SECOND PORTION
	1.250 INCHES NOMINAL FIRST END, THIRD PORTION
	0.969 INCHES NOMINAL SECOND END, FIRST PORTION
	0.375 INCHES NOMINAL SECOND END, SECOND PORTION
	3.125 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.125 INCHES NOMINAL FIRST END, FIRST PORTION
	2.000 INCHES NOMINAL FIRST END, SECOND PORTION
	1.060 INCHES NOMINAL FIRST END, THIRD PORTION
	1.125 INCHES NOMINAL SECOND END, FIRST PORTION
	2.000 INCHES NOMINAL SECOND END, SECOND PORTION
	1.060 INCHES NOMINAL SECOND END, THIRD PORTION
TAPER LENGTH	0.125 INCHES NOMINAL SECOND END, FOURTH PORTION
TAPER LARGEST DIAMETER	0.375 INCHES NOMINAL SECOND END, FOURTH PORTION
TAPER PER FOOT IN INCHES	0.750 SECOND END, FOURTH PORTION
SCREW THREAD SERIES DESIGNATOR	UNC SECOND END, FIFTH PORTION
THREAD LENGTH	1.000 INCHES NOMINAL SECOND END, FIFTH PORTION
OVERALL LENGTH	11.625 INCHES NOMINAL

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