Model: 31491030P1

Spur Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
1.8750 inches
Teeth Quantity
120
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc transversely through hub between firstend flange and body
Hardness Rating
28.0 rockwell c and 34.0 rockwell c
Mounting Hole Thread Size
0.086 inches transversely through hub between firstend flange and body
Mounting Hole Type And Quantity
2 counterbored axially through body, first end and 3 threaded axially through body, first end
Outside Diameter
1.905 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.344 inches first end
Face Width
0.093 inches
Bore Diameter
0.187 inches both ends
Hub Style Designator
1 step first end
End Length
0.125 inches first end
Precision Classification
Quality number 10
End Diameter
0.250 inches first end
First Step Length
0.2187 inches first end
First Step Diameter
0.375 inches first end
Mounting Hole Diameter
0.114 inches axially through body, first end
Bolt Hole Circle Diameter
0.375 inches axially through body, first end and 1.124 inches axially through body, first end
Material
Steel comp 302
Material Specification
Qq-s-763, class302 federal specification single material response
Style Designator
Protruding hub
NSN
3020-00-051-1388
Part Number
31491030P1
Description
Gear,spur
CAGE
3B150

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 31491030P1 NSN 3020-00-051-1388

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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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