Model: 12253M4B

Shouldered Shaft

Special Features:

1 piece mod assembly

Properties:

First End Style
Square (round corners)
End Similarity
Not identical
Second End Style
Circular grooved and flat keyway
Second End Groove Width
Between 0.0390 inches and 0.0420 inches
Second End Groove Diameter
0.6030 inches
Overall Length
4.594 inches
First End Width Across Flats
Between 0.6240 inches and 0.6260 inches
End Application
Los angeles class 688; swivel gear joint p/n 12111m502a
First End Diameter
Between 0.8030 inches and 0.8130 inches
Second End Distance From End To Groove
Between 0.1370 inches and 0.1400 inches
Second End Keyway Width
Between 0.1890 inches and 0.1910 inches
Second End External Keyway Length
0.7500 inches
Second End Keyway Depth
Between 0.1030 inches and 0.1060 inches
Second End Diameter
Between 0.6210 inches and 0.6230 inches
Step Quantity
6
Largest Step Diameter
Between 0.803 inches and 0.813 inches
First End Step Length
1.3100 inches
Part Name Assigned By Controlling Agency
Mod spindle
Material
Steel
NSN
3040-01-503-7835
Part Number
12253M4B
Description
Shaft,shouldered
CAGE
72166

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.

Part 12253M4B NSN 3040-01-503-7835

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22914
FIIG:
A23200
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
126900
UFC:
65750
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483105000
  • SITC: 74810
  • End Use: Industrial machines, other
  • NAICS: 333613
  • USDA: 1

Freight Class: Transmission shafts and cranks, except camshafts and crankshafts

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