National Item Identification Number

01-321-8321
013218321
3040-01-321-8321
3040013218321

National Stock Number

Item Name

SHAFT,SHOULDERED

Federal Supply Class

3040

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.

Commercial and Government Entity Code (Supplier Data)

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19200

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Reference Numbers (Part Numbers)

12553403

Required Categories

MATERIAL
FIRST END STYLE
FIRST END GROOVE WIDTH
FIRST END GROOVE DIAMETER
FI

Required Description

STEEL COMP 4130 OR
STEEL COMP 4140
5 CIRCULAR GROOVED
0.0460 INCHES NOMINAL;