Shouldered Shaft NSN 3040-00-991-8685

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: 3040-00-991-8685

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Features and Characteristics

First End Style

Plain

End Similarity

Not identical

Second End Style

Plain

Overall Length

2.593 inches

First End Diameter

Between 0.3590 inches and 0.3747 inches

Second End Diameter

0.5000 inches

Step Quantity

Largest Step Diameter

0.500 inches

Special Features

First end has int involute splines, 0.188 in. Spline minor dia, 0.1875/0.1882 in. Spline maj dia, 30 degrees pressure angle, 0.500 in. Diametral pitch, 8 spline qty; second end bored, 0.250 in. Dia, 2.405 in. Dp, counterbored 0.3125/0.3130 in. Dia, 0.1095 in. Dp; second end has flange, 0.125 in. Thk, 0.625 in. R

Material

Steel comp 303

Material Specification

Qq-s-763, class 7, cond a federal specification single material response

FSC

3040 Miscellaneous Power Transmission Equipment

NIIN

009918685

NSN

3040009918685

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

547-7440-003

Cage Code:

13499

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 3040-00-991-8685

What are the manufacturers of nsn 3040009918685?

Rockwell Collins, Inc. (13499)

Does this nsn 3040009918685 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3040009918685
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 3040009918685 contain any precious metals?
Precious metal content is unknown.

Does nsn 3040009918685 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3040009918685?
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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