Model: A128108

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
4.2023 inches
Teeth Quantity
66
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
4.263 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
11.0000 degrees
Face Width
1.133 inches
Bore Diameter
1.625 inches both ends
Keyway Width
0.377 inches both ends
Distance From Bore Center To Keyway Bottom
1.000 inches both ends
Material
Steel comp 4142h
Material Specification
66 federal standard single material response and aisi/sae 4142h assn standard single material response
Style Designator
Hubless
NSN
3020-00-405-1793
Part Number
A128108
Description
Gear,helical
CAGE
79938

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 A128108 NSN 3020-00-405-1793

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:
197339
UFC:
96710
LTL:
65.0
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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