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Spur Antibacklash Gear NSN 3020-01-071-6431

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 3020-01-071-6431 NSN: 3020-01-071-6431

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Features and Characteristics

Pitch Diameter
2.0000 inches
Teeth Quantity
144
Outside Diameter
2.0278 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Material
Aluminum alloy 2024
Style Designator
Hubless
Test Data Document
80063-sm-b-890177 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
010716431
NSN
3020010716431

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SM-B-890177
Cage Code:
80063
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 3020-01-071-6431
What are the manufacturers of nsn 3020010716431?
Does this nsn 3020010716431 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020010716431
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 3020010716431 contain any precious metals?
No precious metal content.
Does nsn 3020010716431 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020010716431?
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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