Shouldered Shaft NSN 3040-00-055-1997

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: 3040-00-055-1997

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Features and Characteristics

First End Style

Circular grooved and externally threaded

First End Groove Width

0.0940 inches

First End Groove Diameter

0.4700 inches

End Similarity

Not identical

Second End Style

Woodruff keyway and internally threaded

Overall Length

6.2200 inches

First End Distance From End To Groove

0.541 inches

First End Diameter

0.5620 inches

First End External Thread Length

0.541 inches

Second End Keyway Width

Between 0.0928 inches and 0.0943 inches

Second End External Keyway Length

0.151 inches

Second End Distance From Keyway Center To End

1.188 inches

Second End Diameter

Between 0.5620 inches and 0.5625 inches

Second End Internal Thread Length

0.625 inches

Step Quantity

Largest Step Diameter

Between 0.7800 inches and 0.8200 inches

Material

Steel comp 4340

Fsc Application Data

Turbine and fan assembly, cooling system, engine, aircraft

FSC

3040 Miscellaneous Power Transmission Equipment

NIIN

000551997

NSN

3040000551997

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

21795

Cage Code:

60399

Status:

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 3040-00-055-1997

What are the manufacturers of nsn 3040000551997?

Regal-beloit Corporation (60399)

Does this nsn 3040000551997 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3040000551997
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 3040000551997 contain any precious metals?
Precious metal content is unknown.

Does nsn 3040000551997 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3040000551997?
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:

Cond. Code:

Status:

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