National Item Identification Number
01-029-9257
010299257
3040-01-029-9257
3040010299257
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)
30003
Reference Numbers (Part Numbers)
537AS590
Required Categories
MATERIAL
FIRST END STYLE
FIRST END DIAMETER
FIRST END WIDTH ACROSS FLATS
FIR
Required Description
STEEL COMP 4140
13 SQUARE
0.5200 INCHES NOMINAL
0.525 INCHES NOMINAL
0.410 I