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Spur Antibacklash Gear NSN 3020-00-547-0776

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 3020-00-547-0776 NSN: 3020-00-547-0776

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Features and Characteristics

Pitch Diameter
Between 2.2990 inches and 2.3000 inches
Teeth Quantity
23
Bore Style
Plain both ends
Outside Diameter
2.499 inches
Nominallength
0.640 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.300 inches
Bore Diameter
0.250 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.630 inches first end
Precision Classification
Quality number 10
Material
Steel comp 303 hub
Material Specification
Qq-s-764, type 303, cond a federal specification single material response hub
Style Designator
Protruding hub
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
005470776
NSN
3020005470776

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SGM031694002
Cage Code:
01351
Status:
A
MSDS:
Part Number:
139C7937
Cage Code:
05606
Status:
A
MSDS:
Part Number:
A141-2-1
Cage Code:
26420
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 3020-00-547-0776
What are the manufacturers of nsn 3020005470776?
Does this nsn 3020005470776 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020005470776
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 3020005470776 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020005470776 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020005470776?
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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