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Spur Antibacklash Gear NSN 3020-01-180-6231

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 3020-01-180-6231 NSN: 3020-01-180-6231

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Features and Characteristics

Pitch Diameter
0.7813 inches
Teeth Quantity
50
Bore Style
Plain both ends
Outside Diameter
0.813 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.220 inches first end
Face Width
0.125 inches
Bore Diameter
0.125 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.375 inches first end
Precision Classification
Quality number 12
Material
Steel comp 303 hub
Material Specification
Qq-s-764, cond a federal specification single material response hub
Surface Treatment
Passivate hub
Surface Treatment Specification
Mil-f-14072, finish e300 military specification single treatment response hub
Style Designator
Protruding hub
Furnished Items And Quantity
1 retaining ring and 1 spring
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
011806231
NSN
3020011806231

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
13084036
Cage Code:
58260
Status:
A
MSDS:
Part Number:
13084036-1
Cage Code:
04939
Status:
A
MSDS:
Part Number:
MAB250-50,P2/.345
Cage Code:
01351
Status:
A
MSDS:
Part Number:
MM15040
Cage Code:
06983
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 3020-01-180-6231
What are the manufacturers of nsn 3020011806231?
Does this nsn 3020011806231 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020011806231
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 3020011806231 contain any precious metals?
No precious metal content.
Does nsn 3020011806231 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020011806231?
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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