National Item Identification Number
01-399-0939
013990939
3040-01-399-0939
3040013990939
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)
76301
76301
14248
76301
Reference Numbers (Part Numbers)
74A733032
74A733032-2003
74A733032-2005
74A733032-2005
Required Categories
MATERIAL
FIRST END STYLE
FIRST END DIAMETER
FIRST END WIDTH ACROSS FLATS
FIR
Required Description
STEEL
17 HEXAGONAL
0.6230 INCHES NOMINAL
0.4350 INCHES NOMINAL
0.5400 INCHES