Model: 743C251-1

Helical Gear

Properties:

Body Style
Plain, with lightening holes
Pitch Diameter
9.3750 inches
Teeth Quantity
375
Bore Style
Plain both ends
Outside Diameter
9.416 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
33.6229 degrees
Distance Between Body Face And Protruding Hub End
0.580 inches first end
Face Width
0.500 inches
Bore Diameter
1.849 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
3.000 inches first end
Hub Diameter
3.000 inches second end
Material
Steel
Style Designator
Protruding hubs
NSN
3020-00-795-9936
Part Number
743C251-1
Description
Gear,helical
CAGE
81893

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 743C251-1 NSN 3020-00-795-9936

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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