Model: S648707

Helical Gear

Special Features:

One end of bore chamfered 1/8 in. By 45 deg

Properties:

Body Style
Plain, solid
Pitch Diameter
4.2567 inches
Teeth Quantity
40
Outside Diameter
4.4967 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
20.0000 degrees
Face Width
2.375 inches
Keyway Width
0.250 inches both ends
Material
Steel
Material Specification
Mil-s-890, class bs military specification single material response
Style Designator
Hubless
NSN
3020-00-517-2955
Part Number
S648707
Description
Gear,helical
CAGE
79500

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 S648707 NSN 3020-00-517-2955

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:
A
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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