Model: 4720-8440-15

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
1.1875 inches
Teeth Quantity
12
Bore Style
W/ keyway both ends
Outside Diameter
1.3750 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
24.0000 degrees
Helix Angle
7.0000 degrees
Face Width
1.500 inches
Bore Diameter
0.594 inches both ends
Keyway Width
0.125 inches both ends
Distance From Bore Center To Keyway Bottom
0.344 inches both ends
Material
Steel
Style Designator
Hubless
NSN
3020-00-938-2898
Part Number
4720-8440-15
Description
Gear,helical
CAGE
44114

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 4720-8440-15 NSN 3020-00-938-2898

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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:
062070
UFC:
64910
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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