Model: 251-189SHA

Spur Gear

Special Features:

Hub style 4

Properties:

Body Style
Plain, solid
Attachment Method
Clamp
Pitch Diameter
2.9531 inches
Teeth Quantity
189
Bore Style
Plain both ends
Outside Diameter
2.984 inches
Nominallength
0.500 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.375 inches first end
Face Width
0.125 inches
End Length
0.250 inches first end
Precision Classification
Quality number 10 or quality number 11
First Step Length
0.125 inches first end
Style Designator
Protruding hub
NSN
3020-01-034-5274
Part Number
251-189SHA
Description
Gear,spur
CAGE
01351

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 251-189SHA NSN 3020-01-034-5274

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

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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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