National Item Identification Number
01-321-8318
013218318
3040-01-321-8318
3040013218318
National Stock Number
Item Name
SHAFT,STRAIGHT
Federal Supply Class
3040
Description
A straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.o25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see GEARSHAFT (as modified). For items designed to support rotating members see AXLE(1), STRAIGHT. For items not having the above conditions see PIN, STRAIGHT, HEADLESS. For items having machined ends which constitute steps see SHAFT(1), SHOULDERED; AXLE(1), SHOULDERED; and BOLT, FLUID PASSAGE.
Commercial and Government Entity Code (Supplier Data)
71041
INCOM INTL INC
BOSTON GEAR DIV
14 HAYWARD ST
QUINCY
MA
02171
617-328-3300
Reference Numbers (Part Numbers)
R1412 IT 21
Required Categories
FIRST END STYLE
FIRST END KEYWAY WIDTH
FIRST END EXTERNAL KEYWAY LENGTH
FIRST
Required Description
3 FLAT KEYWAY
0.2500 INCHES NOMINAL
1.3750 INCHES NOMINAL
0.2500 INCHES NOMIN