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NSN 3040-01-091-1982, 3040010911982
WORM SHAFT

Federal Supply Classification
FSC 3040 - Miscellaneous Power Transmission Equipment
National Item Identification Number
NIIN 010911982
Codification Country
United States
Item Name Code
INC 18249
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 3040-01-091-1982

National Stock Number (NSN) 3040-01-091-1982, or NIIN 010911982, (worm shaft) was assigned March 3, 1980 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 02, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 18249. [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, AND THE LIKE. ICLUDES ITEMS WITH BEARINGS. EXCLUDES:ITEMS HAVING MORE THAN ON WORM COMPLEMENT OF HELICAL THREADS, ITEMS WITH A SEPARATE COMPLEMENT OF GEAR TEETH, AND GEAR, WORM.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3040010911982 contains an unknown precious metal.

This NSN is associated to Schedule B 8483105000: transmission shafts and cranks, except camshafts and crankshafts. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.

This information was last updated on .


Technical Characteristics

MATERIAL
(MATL) STEEL,MIL-S-13048,8642,4140 OR 8740
END SIMILARITY
(AAHN) NOT IDENTICAL
OVERALL LENGTH
(ABHP) 17.594 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-13048, 8642, 4140 OR 8740 MIL SPEC ALL MATERIAL RESPONSES
MATERIAL
(MATT) STEEL COMP 4140 OR STEEL COMP 8642 OR STEEL COMP 8740
SHAFT LOCATION
(CFFW) BOTH ENDS OF WORM
SHAFT HARDNESS RATING
(CFFM) 17.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SPECIAL FEATURES
(FEAT) INTERNALLY THD ON 5TH PORTION 1ST END 0.875 IN. DEEP;0.500-20 THD;UNF,CLASS 2B
WORM BODY TAPERED BEARING SURFACE END
(CFFQ) NOT PROVIDED
WORM HELIX ANGLE
(CFFG) 4 DEG 57 MIN
WORM OUTSIDE DIAMETER
(CFFK) 3.774 INCHES MINIMUM AND 3.776 INCHES MAXIMUM
WORM PRESSURE ANGLE IN DEG
(CFFF) 27.500
WORM PITCH DIAMETER
(CFFL) 3.216 INCHES NOMINAL
WORM THREAD DIRECTION
(CFFD) LEFT-HAND
WORM THREAD LEAD
(CFFC) 0.875 INCHES NOMINAL
WORM THREAD QUANTITY
(CFFB) 1
WORM THREAD SECTION LENGTH
(CFFN) 3.750 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.125 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.125 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.875 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.875 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.875 INCHES NOMINAL FIRST END, FIFTH PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.031 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.125 INCHES NOMINAL FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.438 INCHES NOMINAL SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 3.656 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH
(CFFX) 3.656 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.500 INCHES NOMINAL FIRST END, FIFTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.500 INCHES NOMINAL SECOND END, FIFTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.767 INCHES NOMINAL FIRST END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.767 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.750 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.750 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.771 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.771 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 2.156 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 2.156 INCHES NOMINAL SECOND END, FIRST PORTION
TEETH HARDNESS RATING
(BYFR) 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM
UNTHREADED SECTION KEYWAY DEPTH
(CFGB) 0.218 INCHES NOMINAL FIRST END, FIFTH PORTION
UNTHREADED SECTION KEYWAY WIDTH
(CFFZ) 0.3720 INCHES NOMINAL FIRST END, FIFTH PORTION
UNTHREADED SECTION PIN HOLE DIAMETER
(CFGC) 0.5050 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM SECOND END, FOURTH PORTION
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATT) STEEL,MIL-S-13048,8642,4140 OR 8740

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