Model: 72538-1

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
0.4420 inches
Teeth Quantity
20
Bore Style
Plain both ends
Outside Diameter
0.470 inches
Nominallength
0.271 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
45.0000 degrees
Distance Between Body Face And Protruding Hub End
0.067 inches second end
Distance Between Body Face And Protruding Hub End
0.094 inches first end
Face Width
0.110 inches
Bore Diameter
0.127 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
0.250 inches first end
Hub Diameter
0.250 inches second end
Material
Copper alloy 360
Material Specification
Qq-b-626 federal specification single material response
Style Designator
Protruding hubs
NSN
3020-00-489-8953
Part Number
72538-1
Description
Gear,helical
CAGE
65597

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 72538-1 NSN 3020-00-489-8953

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197337
UFC:
96690
LTL:
92.5
LCL:
92.5
WCC:
593
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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