Shouldered Shaft NSN 3040-00-920-7549

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: 3040-00-920-7549

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Features and Characteristics

First End Style

Splined (straight)

End Similarity

Not identical

Second End Style

Two woodruff keyways

Overall Length

28.875 inches

First End Diameter

Between 2.0985 inches and 2.1020 inches

First End Spline Length

1.000 inches

First End Spline Minor Diameter

Between 1.8550 inches and 1.8750 inches

First End Spline Major Diameter

Between 2.0985 inches and 2.1020 inches

Second End Keyway Width

Between 0.4970 inches and 0.5000 inches

Second End External Keyway Length

3.265 inches

Second End Distance From Keyway Center To End

3.898 inches

Second End Diameter

Between 2.1230 inches and 2.1250 inches

Second End Distance Between Keyway Centers

19.470 inches

Step Quantity

First End Spline Quantity

Largest Step Diameter

Between 2.123 inches and 2.125 inches

Special Features

Second keyway dimensions, 0.497 in. W, 2.390 in. Lg; each keyway opposed by another of equal dimensions

Material

Steel comp 4140 or steel comp 8640 or steel comp 8740 or steel comp 5140

Material Specification

Qq-s-624 federal specification single material response

FSC

3040 Miscellaneous Power Transmission Equipment

NIIN

009207549

NSN

3040009207549

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

7954474

Cage Code:

19207

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 3040-00-920-7549

What are the manufacturers of nsn 3040009207549?

U S Army Tank Automotive Command (19207)

Does this nsn 3040009207549 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3040009207549
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 3040009207549 contain any precious metals?
Precious metal content is unknown.

Does nsn 3040009207549 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3040009207549?
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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