Model: 20991

Spur Gear

Properties:

Body Style
Plain, solid
End Application
Aircraft, hercules c-130
Pitch Diameter
0.2500 inches
Teeth Quantity
24
Bore Style
Plain both ends
Outside Diameter
0.271 inches
Pressure Angle
20.0000 degrees
Face Width
0.048 inches
Bore Diameter
0.094 inches both ends
Precision Classification
Quality number 11
Material
Steel comp 303se
Material Specification
Mil-s-7720 military specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072 e300 military specification single treatment response
Style Designator
Hubless
NSN
3020-01-418-3541
Part Number
20991
Description
Gear,spur
CAGE
89944

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 20991 NSN 3020-01-418-3541

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:
A
ESD:
ESD:
MMAC:
SX
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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