Model: 18P90090-4731

Worm Wheel Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
4.6875 inches
Teeth Quantity
25
Face Type
Concave
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
5.062 inches
Tooth Direction
Right
Throat Radius
0.7800 inches
Pressure Angle
14.5000 degrees
Helix Angle
9.0000 degrees
Distance Between Body Face And Protruding Hub End
1.062 inches both ends
Face Width
0.875 inches
Bore Diameter
1.626 inches both ends
Keyway Width
0.378 inches both ends
Distance From Bore Center To Keyway Bottom
1.000 inches both ends
Hub Style Designator
1 step first end
Hub Style Designator
2 steps second end
End Length
0.255 inches second end
End Length
0.250 inches first end
End Diameter
2.050 inches first end
End Diameter
2.057 inches second end
First Step Length
0.812 inches first end
First Step Length
0.711 inches second end
First Step Diameter
2.621 inches second end
First Step Diameter
2.735 inches first end
Second Step Length
0.094 inches second end
Second Step Diameter
2.838 inches second end
Material
Copper alloy body
Material
Iron hub
Material Specification
Mil-i-17166 military specification single material response hub
Style Designator
Protruding hubs
NSN
3020-00-064-7469
Part Number
18P90090-4731
Description
Gear,worm Wheel
CAGE
01425

A gear, cylindrical in form, with spiral teeth designed to mesh with the thread forms of a gear (1), worm. See also gear, antibacklash, worm wheel.

Part 18P90090-4731 NSN 3020-00-064-7469

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05468
FIIG:
A27300
Concept No.:
1
App. Key:
AK
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:
197337
UFC:
96690
LTL:
RATING VARIABLE
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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