3040-01-345-3954

Find complete technical information, availability, and procurement data for: 3040-01-345-3954
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3040 Miscellaneous Power Transmission Equipment

National Stock Number

3040-01-345-3954

Item Name Code

22914

Assigment Date

09/18/1991 (34 years ago)

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.

not identical end similarity, 6.850 inches nominal overall length, 0.622 inches nominal second end width across flats, square (round corners) second end style, external threaded first end style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

First End Style: external threaded
End Similarity: not identical
Second End Style: square (round corners)
Overall Length: 6.850 inches nominal
Second End Width Across Flats: 0.622 inches nominal
End Item Identification: 4920-01-167-2855
First End Diameter: 0.9839 inches nominal
First End External Thread Length: 0.830 inches nominal
Second End Diameter: 1.7700 inches nominal
Step Quantity: 6
Largest Step Diameter: 1.900 inches nominal
Second End Step Length: 1.000 inches nominal
Material: steel comp 4130

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
856A2618P09	Shouldered Shaft

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3040-01-345-3954?

The FSCG of the NSN 3040-01-345-3954 is 3040

Does the NSN 3040-01-345-3954 have a Schedule B code assigned?

Yes, the Schedule B code is 8483105000

Does NSN 3040-01-345-3954 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3040-01-345-3954 contain precious materials?

Item does not contain precious metal.

Does NSN 3040-01-345-3954 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 3040-01-345-3954 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Sep 18, 1991