Model: 549-3425-002

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
Between 0.6177 inches and 0.6187 inches
Teeth Quantity
28
Bore Style
Plain both ends
Outside Diameter
0.648 inches
Nominallength
0.910 inches
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
45.0000 degrees
Distance Between Body Face And Protruding Hub End
0.686 inches both ends
Face Width
0.117 inches
Bore Diameter
0.125 inches both ends
Hub Style Designator
Plain second end
Hub Diameter
0.250 inches second end
Material
Steel comp 303
Material Specification
Qq-s-764 federal specification single material response
Surface Treatment
Chromium
Style Designator
Protruding hubs
NSN
3020-00-411-4523
Part Number
549-3425-002
Description
Gear,helical
CAGE
13499

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 549-3425-002 NSN 3020-00-411-4523

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

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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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