Model: 313259

Helical Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
5.2900 inches
Teeth Quantity
72
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc axially through hub, first end
Mounting Hole Thread Size
0.375 inches axially through hub, first end
Mounting Hole Type And Quantity
4 plain axially through hub, first end and 2 threaded axially through hub, first end
Outside Diameter
5.435 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
21.9806 degrees
Helix Angle
10.9464 degrees
Distance Between Body Face And Protruding Hub End
0.625 inches first end
Face Width
0.625 inches
Bore Diameter
3.376 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
5.000 inches first end
Mounting Hole Diameter
0.406 inches axially through hub, first end
Material
Copper alloy
Material Specification
Mil-b-16033, class 3-canceled military specification single material response
Style Designator
Protruding hub
NSN
3020-00-517-2483
Part Number
313259
Description
Gear,helical
CAGE
21444

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 313259 NSN 3020-00-517-2483

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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