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Spur Antibacklash Gear NSN 3020-01-342-6845

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 3020-01-342-6845 NSN: 3020-01-342-6845

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Features and Characteristics

Teeth Quantity
78
Bore Style
W/counterbore both ends
Hub Style Designator
1 groove both ends
Special Features
Includes 1 spring pin, 1 shim, 1 retaining ring, 1 "c" spring, 1 loose gear, 1 double antibacklash gear
Style Designator
Protruding hubs
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
013426845
NSN
3020013426845

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
277776
Cage Code:
85374
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 3020-01-342-6845
What are the manufacturers of nsn 3020013426845?
Does this nsn 3020013426845 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020013426845
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 3020013426845 contain any precious metals?
No precious metal content.
Does nsn 3020013426845 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020013426845?
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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