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Spur Antibacklash Gear NSN 3020-00-682-3867

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 3020-00-682-3867 NSN: 3020-00-682-3867

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Features and Characteristics

Attachment Method
Internal ring groove
Pitch Diameter
3.1250 inches
Teeth Quantity
150
Outside Diameter
3.1666 inches
Nominallength
1.530 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.875 inches first end
Face Width
0.104 inches
Hub Style Designator
2 steps first end
End Length
0.538 inches first end
End Diameter
0.310 inches both ends
First Step Length
0.267 inches first end
First Step Diameter
0.500 inches second end
Second Step Length
0.070 inches first end
Second Step Diameter
0.880 inches first end
Special Features
0.280 in.Clamping surface lg on both hub ends and 0.060 in.Wide 0.298 in. Diameter grooves on both ends, 0.250 in.From end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 1 military specification single treatment response
Style Designator
Protruding hubs
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
006823867
NSN
3020006823867

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
44-32324A01
Cage Code:
1VPW8
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 3020-00-682-3867
What are the manufacturers of nsn 3020006823867?
Does this nsn 3020006823867 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020006823867
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 3020006823867 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020006823867 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020006823867?
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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