3040-00-385-7731, WORM SHAFT

National Stock Number:
3040-00-385-7731

Federal Supply Class:
3040

National Item Identification Number:
003857731

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:

7186995

19204

ARMY, UNITED STATES DEPARTMENT OF THE

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
FSC APPLICATION DATA	LAUNCHER,762-MM ROCKET,TRUCK MOUNTED,XM289
OVERALL LENGTH	10.563 INCHES NOMINAL
MATERIAL	STEEL
SHAFT LOCATION	BOTH ENDS OF WORM
SHAFT HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SPECIAL FEATURES	BOTH ENDS CHAMFERED 0.0625 BY 45 DEG AND THREAD SURFACE FINISH 32AA
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM BODY LENGTH	6.376 INCHES NOMINAL
WORM HELIX ANGLE	4 DEG 34 MIN.
WORM OUTSIDE DIAMETER	2.8866 INCHES NOMINAL
WORM PITCH DIAMETER	2.4886 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG	14.500
WORM THREAD DIRECTION	RIGHT-HAND
WORM THREAD LEAD	0.6253 INCHES NOMINAL
WORM THREAD QUANTITY	1
WORM THREAD SECTION LENGTH	3.750 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH	1.187 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH	1.312 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH	1.687 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.000 INCHES MAXIMUM SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.998 INCHES MINIMUM SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.3765 INCHES MAXIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.3765 INCHES MAXIMUM SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.3760 INCHES MINIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	1.3760 INCHES MINIMUM SECOND END, FIRST PORTION
SURFACE TREATMENT	OXIDE
TEETH HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
UNTHREADED SECTION KEYWAY DEPTH	0.136 INCHES MINIMUM SECOND END, SECOND PORTION
UNTHREADED SECTION KEYWAY DEPTH	0.139 INCHES MAXIMUM SECOND END, SECOND PORTION
UNTHREADED SECTION KEYWAY WIDTH	0.2465 INCHES MINIMUM SECOND END, SECOND PORTION
UNTHREADED SECTION KEYWAY WIDTH	0.2485 INCHES MAXIMUM SECOND END, SECOND PORTION

Click here to Register for Free 30-day Trial