Model: 3156-21PC67

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
5.5040 inches
Teeth Quantity
49
Outside Diameter
5.7220 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Face Width
1.625 inches
Keyway Width
0.250 inches both ends
Counterbore Diameter
2.5000 inches both ends
Style Designator
Hubless
NSN
3020-00-473-0838
Part Number
3156-21PC67
Description
Gear,helical
CAGE
33781

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 3156-21PC67 NSN 3020-00-473-0838

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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

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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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