Model: 138110-1

Spur Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
4.3125 inches
Teeth Quantity
276
Bore Style
W/counterbore both ends
Mounting Hole Thread Series Designator
Unc axially through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
40 axially through hub, first end
Mounting Hole Thread Size
0.112 inches axially through hub, first end
Mounting Hole Type And Quantity
4 threaded axially through hub, first end
Outside Diameter
4.342 inches
Nominallength
0.250 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.125 inches first end
Face Width
0.125 inches
Bore Diameter
3.355 inches both ends
Counterbore Depth
0.125 inches first end
Counterbore Diameter
3.429 inches first end
Hub Style Designator
1 step first end
End Length
0.064 inches first end
Precision Classification
Quality number 10 or quality number 11
End Diameter
3.622 inches first end
First Step Length
0.061 inches first end
First Step Diameter
4.152 inches first end
Bolt Hole Circle Diameter
3.844 inches axially through hub, first end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Surface Treatment
Anodize
Style Designator
Protruding hub
NSN
3020-00-405-4234
Part Number
138110-1
Description
Gear,spur
CAGE
24930

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 138110-1 NSN 3020-00-405-4234

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:
197337
UFC:
96690
LTL:
RATING VARIABLE
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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