Shouldered Shaft NSN 3040-01-251-8397

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: 3040-01-251-8397

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Related NSN

Features and Characteristics

First End Style

Flat keyway

End Similarity

Not identical

Second End Style

Flat keyway

Overall Length

28.750 inches

First End Keyway Width

0.5010 inches

First End External Keyway Length

2.185 inches

First End Keyway Depth

0.284 inches

First End Diameter

2.2511 inches

Second End Keyway Width

0.6260 inches

Second End External Keyway Length

3.080 inches

Second End Keyway Depth

0.3567 inches

Second End Diameter

2.4997 inches

Step Quantity

Largest Step Diameter

3.450 inches

Surface Finish

63.0 microinches

Special Features

Two threaded holes in first end 3/8-24unf-2b x 1/2 in.Dp 180 degrees apart

Material

Steel comp 4340

Material Specification

Mil-s-5000 military specification single material response

FSC

3040 Miscellaneous Power Transmission Equipment

NIIN

012518397

NSN

3040012518397

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

5210186

Cage Code:

03679

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 3040-01-251-8397

What are the manufacturers of nsn 3040012518397?

Rosenblatt M And Son Inc (03679)
Naval Sea Systems Command (53711)

Does this nsn 3040012518397 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3040012518397
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 3040012518397 contain any precious metals?
No precious metal content.

Does nsn 3040012518397 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3040012518397?
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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Certificate of Conformance
Quality Inspected Parts
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