Model: 520821

Spur Gear

Properties:

Body Style
Plain, solid
Spline Quantity
6 both ends
Pitch Diameter
3.0000 inches
Teeth Quantity
30
Bore Style
Straight spline both ends
Hardness Rating
23.0 rockwell c and 32.0 rockwell c
Hardness Rating
23.0 rockwell c and 32.0 rockwell c
Outside Diameter
3.1985 inches
Tooth Form
Standard
Flange Diameter
2.4384 inches
Pressure Angle
20.0000 degrees
Flange Thickness
0.246 inches
Face Width
0.750 inches
Bore Diameter
1.2478 inches both ends
Distance Between Outer Body Face And Inner Flange Face
1.8160 inches
Hub Style Designator
Plain between body and flange
Hub Diameter
1.625 inches between body and flange
Material
Steel comp 4142
Material Specification
Fed standard 66 federal standard single material response
Surface Treatment
Oxide
Style Designator
Flanged end
NSN
3020-00-379-6310
Part Number
520821
Description
Gear,spur
CAGE
10001

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 520821 NSN 3020-00-379-6310

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
121870
UFC:
64910
LTL:
77.5
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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