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Shouldered Shaft NSN 3040-00-707-9778

Item Description

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.

NSN 3040-00-707-9778 NSN: 3040-00-707-9778

  Stock Availability

NSN 3040007079778 availability
(as of 10/02/2023).

  • NE: 9
  • NS: 1
  • OH: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

First End Style
External threaded
End Similarity
Not identical
Second End Style
Splined (involute)
Overall Length
Between 2.105 inches and 2.135 inches
First End Diameter
Between 0.3430 inches and 0.3437 inches
First End External Thread Length
0.340 inches
Second End Diameter
Between 0.6794 inches and 0.6814 inches
Second End Spline Length
0.320 inches
Second End Spline Minor Diameter
0.5417 inches
Second End Spline Major Diameter
Between 0.6794 inches and 0.6814 inches
Second End Pitch Diameter
0.5417 inches
Step Quantity
3
Second End Spline Quantity
10
Criticality Code Justification
Supp
Largest Step Diameter
Between 0.373 inches and 0.374 inches
Special Features
Shaft center 0.240in.Dia
Material
Steel
Material Specification
Ams6415 assn standard single material response
Supplementary Features
Part has critical tolerance on the thickness of the item, as well as application
FSC
3040 Miscellaneous Power Transmission Equipment
NIIN
007079778
NSN
3040007079778

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
544011
Cage Code:
73030
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8483105000
  • NAICS: 333613
  • SITC: 74810
  • Description: Transmission shafts and cranks, except camshafts and crankshafts
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3040-00-707-9778
What are the manufacturers of nsn 3040007079778?
Does this nsn 3040007079778 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3040007079778
A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. it must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. the ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. it is not designed for use in aligning by fitting into corresponding holes of another item. for items used to support rotating members see axle(1), shouldered. for items not having any of the above conditions see pin, shoulder, headless. excludes shaft(1), straight; and axle(1), straight.
Does nsn 3040007079778 contain any precious metals?
No precious metal content.
Does nsn 3040007079778 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3040007079778?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22914
FIIG:
A23200
App. Key:
A
Cond. Code:
1
Status:
A

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