Model: 641773

Spur Gear

Properties:

Body Style
Webbed, with lightening holes
Pitch Diameter
4.3330 inches
Teeth Quantity
52
Bore Style
W/counterbore counterbore, first end
Backlash Designation
Grade a
Hardness Rating
80.0 rockwell c and 83.0 rockwell c
Hardness Rating
80.0 rockwell c and 83.0 rockwell c
Outside Diameter
4.4490 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
1.5310 inches first end
Distance Between Body Face And Protruding Hub End
1.5440 inches second end
Face Width
0.370 inches
Bore Diameter
0.3750 inches counterbore, first end
Counterbore Depth
2.0940 inches counterbore, first end
Counterbore Diameter
0.6250 inches counterbore, first end
Hub Style Designator
1 step both ends
End Length
0.4680 inches second end
End Length
1.0320 inches first end
End Diameter
0.7877 inches both ends
First Step Length
0.3120 inches both ends
First Step Diameter
0.9220 inches both ends
Material
Steel
Style Designator
Protruding hubs
NSN
3020-00-342-0540
Part Number
641773
Description
Gear,spur
CAGE
99167

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 641773 NSN 3020-00-342-0540

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:
197339
UFC:
96710
LTL:
65.0
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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