National Item Identification Number

01-255-6201
012556201
3040-01-255-6201
3040012556201

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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Reference Numbers (Part Numbers)

903-5912051
903-5912051 PC42

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
FIRST END STYLE
FIRST END FLAT

Required Description

STEEL
QQ-T-570 FED SPEC SINGLE MATERIAL RESPONSE
4 FLATTED
0.0310 INCHES NOMI