Model: B831-2412-78

Shouldered Shaft

Special Features:

Second end provided with 0.375-16unc-2a threads. 0.125-0.127 wide x 0.068-0.085 deep keyway slot on second end

Properties:

First End Style
Flatted
End Similarity
Not identical
Second End Style
Circular grooved and externally threaded
Second End Groove Width
0.1900 inches
Second End Groove Diameter
0.2700 inches
Overall Length
6.375 inches
End Application
Cargo bay - center/outboard hoist misc assembly for seawolf class ssn 23
First End Flat Depth
Between 0.1250 inches and 0.1270 inches
First End Flat Length
0.810 inches
First End Keyway Depth
0.810 inches
First End Diameter
Between 0.6230 inches and 0.6250 inches
Second End Distance From End To Groove
0.560 inches
Second End Diameter
0.3750 inches
Second End External Thread Length
0.560 inches
Step Quantity
8
Largest Step Diameter
1.750 inches
Surface Finish
32.0 microinches
Material
Steel comp 304
Material Specification
Qq-s-763 class-304, condition-a federal specification single material response
NSN
3040-01-500-4804
Part Number
B831-2412-78
Description
Shaft,shouldered
CAGE
96169

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 B831-2412-78 NSN 3040-01-500-4804

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:
A
ESD:
A
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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