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Spur Antibacklash Gear NSN 3020-00-884-5980

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 3020-00-884-5980 NSN: 3020-00-884-5980

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Features and Characteristics

Attachment Method
Clamp
Pitch Diameter
0.9500 inches
Teeth Quantity
118
Bore Style
Plain both ends
Outside Diameter
0.966 inches
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.152 inches first end
Face Width
0.057 inches
Bore Diameter
0.120 inches both ends
Hub Diameter
0.156 inches first end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Style Designator
Protruding hub
Furnished Items And Quantity
1 retaining ring and 1 spring
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
008845980
NSN
3020008845980

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
30138-114
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 3020-00-884-5980
What are the manufacturers of nsn 3020008845980?
Does this nsn 3020008845980 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020008845980
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 3020008845980 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020008845980 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020008845980?
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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