Model: 78684

Shouldered Shaft

Properties:

First End Style
Plain
End Similarity
Not identical
Second End Style
Splined (straight)
Overall Length
7.536 inches
First End Diameter
0.7874 inches
Second End Diameter
0.7874 inches
Second End Spline Length
0.625 inches
Second End Spline Minor Diameter
Between 0.3952 inches and 0.4049 inches
Second End Spline Major Diameter
Between 0.4970 inches and 0.5000 inches
Step Quantity
2
Second End Spline Quantity
11
Criticality Code Justification
Matt
Largest Step Diameter
1.100 inches
Surface Finish
63.0 microinches
Material
Steel comp 416
NSN
3040-00-451-8780
Part Number
78684
Description
Shaft,shouldered
CAGE
02101

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 78684 NSN 3040-00-451-8780

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:
U
ESD:
ESD:
MMAC:
CRITL:
Y

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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