Model: R20839

Spur Gear

Properties:

Body Style
Webbed, offset, solid
Spline Quantity
12 both ends
Pitch Diameter
5.2860 inches
Teeth Quantity
37
Bore Style
Involute spline both ends
Spline Pitch Diameter
1.8490 inches both ends
Hardness Rating
58.0 rockwell c and 62.0 rockwell c
Hardness Rating
58.0 rockwell c and 62.0 rockwell c
Nominallength
1.250 inches
Tooth Form
Standard
Pressure Angle
22.5000 degrees
Distance Between Body Face And Protruding Hub End
0.562 inches first end
Distance Between Body Face And Protruding Hub End
0.063 inches second end
Bore Diameter
1.999 inches both ends
Counterbore Depth
0.062 inches second end
Counterbore Diameter
2.250 inches second end
Hub Style Designator
1 groove first end
Hub Style Designator
Plain second end
Hub Diameter
2.562 inches second end
End Diameter
3.000 inches first end
First Groove Width
0.388 inches first end
First Groove Diameter
2.435 inches first end
Distance From End To First Groove
0.150 inches first end
Material
Steel comp 8620h
Material Specification
66, aisi/sae 8620h federal standard single material response
Style Designator
Protruding hubs
NSN
3020-00-737-1206
Part Number
R20839
Description
Gear,spur
CAGE
83120

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 R20839 NSN 3020-00-737-1206

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:
70.0
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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