Model: 4478

Spur Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
7.8330 inches
Teeth Quantity
47
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
8.085 inches
Nominallength
2.235 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.547 inches second end
Face Width
0.687 inches
Bore Diameter
2.251 inches both ends
Keyway Width
0.378 inches both ends
Distance From Bore Center To Keyway Bottom
1.317 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.750 inches first end
Hub Diameter
2.750 inches second end
Material
Steel comp 1045
Material Specification
66 federal standard single material response and aisi/sae 1045 assn standard single material response
Style Designator
Protruding hubs
NSN
3020-00-351-9592
Part Number
4478
Description
Gear,spur
CAGE
76255

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 4478 NSN 3020-00-351-9592

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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