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Helical Gear NSN 3020-00-406-7891

Item Description

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:

NSN 3020-00-406-7891 NSN: 3020-00-406-7891

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Features and Characteristics

Body Style
Webbed, offset, solid
Attachment Method
Mounting hole
Pitch Diameter
3.4020 inches
Teeth Quantity
44
Bore Style
Serrated both ends
Mounting Hole Thread Series Designator
Unf axially through body, first end
Hardness Rating
26.0 rockwell c and 33.0 rockwell c
Mounting Hole Thread Size
0.312 inches axially through body, first end
Mounting Hole Type And Quantity
4 threaded axially through body, first end and 2 threaded axially through body, first end
Outside Diameter
3.537 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
22.5000 degrees
Face Width
0.810 inches
Hub Style Designator
Plain first end
Hub Diameter
1.180 inches first end
Bolt Hole Circle Diameter
2.380 inches axially through body, first end and 2.000 inches axially through body, first end
Special Features
Counterbore on 2nd end w/ 1.101 in. Nom dia, 0.160 in. Nom depth
Material
Steel comp 1141
Material Specification
66 federal standard single material response and aisi/sae 1141 assn standard single material response
Style Designator
Flush hub
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
004067891
NSN
3020004067891

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5132735
Cage Code:
72582
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8483409000
  • NAICS: 333612
  • SITC: 74840
  • Description: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3020-00-406-7891
What are the manufacturers of nsn 3020004067891?
Does this nsn 3020004067891 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020004067891
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:
Does nsn 3020004067891 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020004067891 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020004067891?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
App. Key:
AF
Cond. Code:
1
Status:
A

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