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Shouldered Shaft NSN 3040-01-255-7984

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 3040-01-255-7984 NSN: 3040-01-255-7984

Features and Characteristics

First End Style
Plain
End Similarity
Not identical
Second End Style
Plain
Overall Length
Between 6.470 inches and 6.530 inches
First End Diameter
Between 0.3129 inches and 0.3132 inches
Second End Diameter
Between 0.4993 inches and 0.4995 inches
Step Quantity
1
Largest Step Diameter
Between 0.4993 inches and 0.4995 inches
Special Features
First end has hole 0.290 in. Dia., 0.44 in. Deep; woodruff keyway 2.34 in. From second end
Material
Steel comp 303
Material Specification
Qq-s-764 assn standard single material response
FSC
3040 Miscellaneous Power Transmission Equipment
NIIN
012557984
NSN
3040012557984

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
S300829-001
Cage Code:
29778
Status:
A
MSDS:
Part Number:
S300829-1
Cage Code:
29778
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 3040-01-255-7984
What are the manufacturers of nsn 3040012557984?
Does this nsn 3040012557984 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3040012557984
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 3040012557984 contain any precious metals?
Precious metal content is unknown.
Does nsn 3040012557984 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3040012557984?
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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