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Spur Antibacklash Gear NSN 3020-01-012-3469

Item Description

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

NSN 3020-01-012-3469 NSN: 3020-01-012-3469

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Features and Characteristics

Pitch Diameter
0.7500 inches
Teeth Quantity
90
Bore Style
Plain both ends
Outside Diameter
0.7666 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.016 inches second end
Face Width
0.094 inches
Bore Diameter
0.094 inches both ends
Hub Style Designator
Plain second end
Hub Diameter
0.250 inches first end
Material
Steel comp 303
Material Specification
Qq-s-764, type 303, cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-std-171, finish no. 5.4.1 military specification single treatment response
Style Designator
Protruding hubs
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
010123469
NSN
3020010123469

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
119883
Cage Code:
10138
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 3020-01-012-3469
What are the manufacturers of nsn 3020010123469?
Does this nsn 3020010123469 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020010123469
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. the free gear is attached to the fixed gear by springs and operates as one gear. upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. this spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. the gear is used where identical and accurate transmitted motion between gears is required.
Does nsn 3020010123469 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020010123469 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020010123469?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
26668
FIIG:
A27300
App. Key:
AC
Cond. Code:
1
Status:
A

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