Model: STC90287-3

Worm Wheel Gear

Properties:

Pitch Diameter
2.5000 inches
Teeth Quantity
20
Face Type
Concave
Bore Style
10a w/ keyway both ends
Features Provided
Casehardened
Outside Diameter
3.000 inches
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Face Width
0.750 inches
Bore Diameter
1.251 inches both ends
Keyway Width
0.251 inches both ends
Distance From Bore Center To Keyway Bottom
0.741 inches both ends
Hub Style Designator
Plain both ends
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Oxide
Surface Treatment Specification
Mil-c-13924, class 1 military specification single treatment response or ams 2485 assn standard single treatment response
Style Designator
Protruding hub
NSN
3020-01-256-6045
Part Number
STC90287-3
Description
Gear,worm Wheel
CAGE
07132

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 STC90287-3 NSN 3020-01-256-6045

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

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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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