Model: B554-78

Spur Gear

Special Features:

1 0.190 in. Diameter threaded hole on hub for positioning

Properties:

Body Style
Plain, solid
Attachment Method
Clamp tab
Pitch Diameter
1.8750 inches
Teeth Quantity
60
Bore Style
W/counterbore second end
Outside Diameter
1.9360 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.469 inches first end
Face Width
0.3120 inches
Bore Diameter
0.750 inches both ends
Counterbore Depth
0.0937 inches second end
Counterbore Diameter
1.0625 inches second end
Hub Style Designator
Plain first end
Hub Diameter
1.375 inches first end
Material
Steel comp 303
Material Specification
Qq-s-763, class303 federal specification single material response
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-722-4266
Part Number
B554-78
Description
Gear,spur
CAGE
34228

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 B554-78 NSN 3020-00-722-4266

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:
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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