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Worm Wheel Antibacklash Gear NSN 3020-00-010-7581

Item Description

An item having one fixed gear and one free gear, both having the same complement of worm wheel 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 3020-00-010-7581 NSN: 3020-00-010-7581

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Features and Characteristics

Attachment Method
Clamp
Pitch Diameter
Between 0.9360 inches and 0.9370 inches
Teeth Quantity
60
Face Type
Concave
Bore Style
Plain both ends
Tooth Direction
Right
Throat Radius
0.187 inches
Mating Thread Lead Quantity
4
Pressure Angle
14.5000 degrees
Bore Diameter
0.187 inches both ends
Material
Copper alloy
Material Specification
Mil-b-994 military specification single material response
Style Designator
Protruding hub
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
000107581
NSN
3020000107581

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1801276
Cage Code:
03956
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 3020-00-010-7581
What are the manufacturers of nsn 3020000107581?
Does this nsn 3020000107581 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020000107581
An item having one fixed gear and one free gear, both having the same complement of worm wheel 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 3020000107581 contain any precious metals?
No precious metal content.
Does nsn 3020000107581 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020000107581?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
26669
FIIG:
A27300
App. Key:
AD
Cond. Code:
1
Status:
A

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