Model: 3157-128

Spur Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
0.3437 inches
Teeth Quantity
15
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc axially through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
56 axially through hub, first end
Mounting Hole Type And Quantity
1 threaded axially through hub, first end
Outside Diameter
0.375 inches
Nominallength
0.250 inches
Tooth Form
Standard
Pressure Angle
14.5000 degrees
Face Width
0.125 inches
Bore Diameter
0.126 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
0.250 inches first end
Material
Steel comp 303
Material Specification
Qq-s-763, class 303, cond a federal specification single material response
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-960-1423
Part Number
3157-128
Description
Gear,spur
CAGE
90073

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 3157-128 NSN 3020-00-960-1423

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197337
UFC:
96690
LTL:
92.5
LCL:
92.5
WCC:
593
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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