3040-00-125-8782 SHAFT,SHOULDERED Index 3040-00-125-8784 SPIDER AND GEAR ASSEMBLY

National Stock Number:
3040-00-125-8783

Federal Supply Class:
3040

National Item Identification Number:
001258783

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:
858756419200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATAMOUNT,TELESCOPE
OVERALL LENGTH6.375 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 303, 303SE OR 304 CONDITION A FED SPEC ALL MATERIAL RESPONSES
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304
SCREW THREAD SERIES DESIGNATORUNF BOTH ENDS
SHAFT HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND END FIFTH PORTION
STRAIGHT UNTHREADED LENGTH0.047 INCHES MINIMUM AND 0.062 INCHES MAXIMUM FIRST END SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.047 INCHES MINIMUM AND 0.062 INCHES MAXIMUM SECOND END FOURTH PORTION
STRAIGHT UNTHREADED LENGTH0.047 INCHES MINIMUM AND 0.062 INCHES MAXIMUM SECOND END SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.047 INCHES MINIMUM AND 0.062 INCHES MAXIMUM SECOND END SIXTH PORTION
STRAIGHT UNTHREADED LENGTH0.263 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.583 INCHES NOMINAL SECOND END THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.900 INCHES MINIMUM AND 0.910 INCHES MAXIMUM FIRST END THIRD PORTION
STRAIGHT UNTHREADED LENGTH1.198 INCHES NOMINAL SECOND END SEVENTH PORTION
STRAIGHT UNTHREADED LENGTH1.410 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.339 INCHES MINIMUM AND 0.354 INCHES MAXIMUM SECOND END SIXTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM SECOND END FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.374 INCHES NOMINAL SECOND END SEVENTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM FIRST END THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.401 INCHES MINIMUM AND 0.416 INCHES MAXIMUM FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.402 INCHES MINIMUM AND 0.417 INCHES MAXIMUM SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM FIRST END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.437 INCHES NOMINAL SECOND END THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM SECOND END FIRST PORTION
SURFACE TREATMENTPASSIVATE
TEETH HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
THREAD LENGTH0.323 INCHES NOMINAL SECOND END FIFTH PORTION
WORM BODY LENGTH3.173 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE5DEG44MIN
WORM OUTSIDE DIAMETER0.932 INCHES MINIMUM AND 0.937 INCHES MAXIMUM
WORM PITCH DIAMETER0.776 INCHES MINIMUM AND 0.778 INCHES MAXIMUM
WORM THREAD DIRECTIONLEFT-HAND
WORM PRESSURE ANGLE IN DEG14.500
WORM THREAD LEAD0.245 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH1.490 INCHES MINIMUM AND 1.500 INCHES MAXIMUM


Click here to Register for Free 30-day Trial

© 2025 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us