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Spur Antibacklash Gear NSN 3020-00-869-8431

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 3020-00-869-8431 NSN: 3020-00-869-8431

Features and Characteristics

Attachment Method
Clamp
Pitch Diameter
1.3540 inches
Teeth Quantity
130
Outside Diameter
1.371 inches
Pressure Angle
14.5000 degrees
Distance Between Body Face And Protruding Hub End
0.188 inches first end
Face Width
0.250 inches
Hub Style Designator
Split first end
Hub Diameter
0.188 inches first end
Material
Steel comp 302 hub
Material Specification
Qq-a-225/6, t4 federal specification single material response teeth
Surface Treatment
Passivate hub
Style Designator
Protruding hub
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
008698431
NSN
3020008698431

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
510-1-104
Cage Code:
07421
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 3020-00-869-8431
What are the manufacturers of nsn 3020008698431?
Does this nsn 3020008698431 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020008698431
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 3020008698431 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020008698431 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020008698431?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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