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NSN: 3040-00-001-3373
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Part Numbers

Item Number Item Description
305689-2 Shaft, Straight

Master Requirement Codes

Code Translation
AAHN A term used to identify the ends as identical or not identical.
AMDL The length of a straight line which passes through the center of the first end, and terminates at the circumference.
AMEB A measurement between specified points of the hole at the first end, in distinction from height.
AMDX The length of a straight line which passes through the center of a hole or body of the first end, and terminates at the circumference.
AAGZ The style designation indicating the configuration that most nearly corresponds to the appearance of the first end.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
AMFZ The length of a straight line which passes through the center of the second end, and terminates at the circumference.
AMFR A measurement taken at right angles to the length of the keyway at the second end, in distinction from thickness.
AMFT A measurement between specified points of the keyway at the second end.
AAHP The style designation indicating the configuration that most nearly corresponds to the appearance of the second end.
ABHP The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

305689-2 Straight Shaft

Cage 58163

Technical Definition

Shaft, Straight, also referenced with federal logistics item name code 22109 - 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.

Technical Characteristics

End Similarity (AAHN):
Not identical
First End Distance From Hole Center To End (AMDZ):
0.562 inches nominal
First End Diameter (AMDL):
0.4375 inches nominal
First End Hole Depth (AMEB):
0.438 inches nominal
First End Hole Diameter (AMDX):
0.1250 inches nominal
First End Style (AAGZ):
Unthreaded cross drilled
Material (MATT):
Steel
Second End Distance From Keyway Center To End (AMFW):
0.359 inches nominal
Second End External Keyway Length (AMFS):
0.469 inches nominal
Second End Diameter (AMFZ):
0.4375 inches nominal
Second End Keyway Width (AMFR):
0.0938 inches nominal
Second End Keyway Depth (AMFT):
0.188 inches nominal
Second End Style (AAHP):
Indented flat keyway
Overall Length (ABHP):
3.500 inches nominal

National Stock Number (NSN)

3040-00-001-3373