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NSN 3040-00-652-6305, 3040006526305
WORM SHAFT

Federal Supply Classification
FSC 3040 - Miscellaneous Power Transmission Equipment
National Item Identification Number
NIIN 006526305
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 3040-00-652-6305

National Stock Number (NSN) 3040-00-652-6305, or NIIN 006526305, (worm shaft) was assigned January 1, 1963 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 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 3040006526305 does not contain precious metals.

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

END SIMILARITY
(AAHN) NOT IDENTICAL
MATERIAL
(MATT) STEEL
OVERALL LENGTH
(ABHP) 11.500 INCHES NOMINAL
SCREW THREAD SERIES DESIGNATOR
(AJYP) UNF BOTH ENDS
SHAFT HARDNESS RATING
(CFFM) 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
SHAFT LOCATION
(CFFW) BOTH ENDS OF WORM
SHAFT THREAD DIRECTION
(AKAF) RIGHT-HAND STEAM INLET
SPECIAL FEATURES
(FEAT) 32 AA MICROINCH FINISH ON FIRST END,SECOND PORTION,SECOND END,SECONDAND THIRD PORTIONS AND WORM THREAD SURFACES
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.750 INCHES NOMINAL ALL THREADED PORTIONS
STRAIGHT UNTHREADED LENGTH
(CFFX) 0.813 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.250 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.250 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.500 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.927 INCHES MINIMUM CONCENTRIC HOLE
STRAIGHT UNTHREADED LENGTH
(CFFX) 1.937 INCHES MAXIMUM COUNTERBORE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 0.875 INCHES MAXIMUM COUNTERBORE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 0.872 INCHES MINIMUM CONCENTRIC HOLE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.125 INCHES NOMINAL D ENTRANCE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.1810 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.1810 INCHES MINIMUM TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.1814 INCHES MAXIMUM AXIALLY AT EACH END
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.1814 INCHES MAXIMUM FIRST STEP
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.560 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.560 INCHES MINIMUM RECEPTACLE PLATE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.570 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER
(CFFY) 1.570 INCHES MAXIMUM SEPARATING PIN
SURFACE TREATMENT
(SFTT) PHOSPHATE
TAPER LARGEST DIAMETER
(CFGD) 1.125 INCHES NOMINAL THREADS
TAPER LENGTH
(ABND) 0.250 INCHES NOMINAL THREADS
TAPER PER FOOT IN INCHES
(ABNJ) 0.500 BOTH ENDS
TEETH HARDNESS RATING
(BYFR) 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
THREAD LENGTH
(AASA) 1.095 INCHES MINIMUM STEAM INLET
THREAD LENGTH
(AASA) 1.110 INCHES MAXIMUM BACK LINING
UNTHREADED SECTION KEYWAY DEPTH
(CFGB) 0.139 INCHES MINIMUM CONCENTRIC HOLE
UNTHREADED SECTION KEYWAY DEPTH
(CFGB) 0.147 INCHES MAXIMUM COUNTERBORE
UNTHREADED SECTION KEYWAY WIDTH
(CFFZ) 0.2510 INCHES MAXIMUM COUNTERBORE
UNTHREADED SECTION KEYWAY WIDTH
(CFFZ) 0.2490 INCHES MINIMUM CONCENTRIC HOLE
WORM BODY LENGTH
(CFFP) 2.500 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE END
(CFFQ) NOT PROVIDED
WORM HELIX ANGLE
(CFFG) 14 DEG 56 MIN 24 SEC
WORM OUTSIDE DIAMETER
(CFFK) 2.680 INCHES NOMINAL
WORM PITCH DIAMETER
(CFFL) 2.500 INCHES NOMINAL
WORM THREAD DIRECTION
(CFFD) RIGHT-HAND
WORM PRESSURE ANGLE IN DEG
(CFFF) 14.500
WORM THREAD LEAD
(CFFC) 0.750 INCHES NOMINAL
WORM THREAD QUANTITY
(CFFB) 2
WORM THREAD SECTION LENGTH
(CFFN) 2.063 INCHES NOMINAL
MATERIAL
(MATL) TOOL STEEL
SURFACE TREATMENT
(SURF) PHOSPHATE
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
SHAFT THREAD DIRECTION
(AKAF) RIGHT-HAND SECOND END, SIXTH PORTION
ERR DEFAULT
(ABNJ) ERR DEFAULT
UNABLE TO DECODE
(SURF) UNABLE TO DECODE

Manufacturer Part Numbers

8759232

RNCC
3
RNVC
2
3040006526305

006526305

006526305


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