National Item Identification Number
01-393-2721
013932721
3040-01-393-2721
3040013932721
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)
1W025
Reference Numbers (Part Numbers)
DAA7299D104-003
Required Categories
MATERIAL
FIRST END STYLE
FIRST END DIAMETER
FIRST END HOLE DIAMETER
FIRST EN
Required Description
ALUMINUM ALLOY 7075
23 UNTHREADED CROSS DRILLED
2.0000 INCHES NOMINAL
1.0000
