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Gear Cluster NSN 3020-00-345-2666

Item Description

A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes gear subassembly, speed decreaser.

NSN 3020-00-345-2666 NSN: 3020-00-345-2666

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Features and Characteristics

End Application
Grumman aerospace a-10 aircraft
Bore Style
W/counterbore both ends
Design Type
Spur all gears
Construction
Assembled
Outside Diameter
2.500 inches third gear
Nominallength
1.297 inches
Hub Length
0.391 inches between first and second gear
Bore Diameter
0.594 inches both ends
Counterbore Depth
0.891 inches second end
Counterbore Diameter
1.031 inches second end
Hub Style Designator
Plain between second and third gear
Hub Diameter
2.031 inches first end
Material
Steel
Surface Treatment
Oxide
Furnished Items And Quantity
1 lubricant impregnated bearing
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
003452666
NSN
3020003452666

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
139C6837
Cage Code:
05606
Status:
A
MSDS:
Part Number:
139B6837
Cage Code:
26420
Status:
A
MSDS:
Part Number:
139C6837-13
Cage Code:
05606
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 3020-00-345-2666
What are the manufacturers of nsn 3020003452666?
Does this nsn 3020003452666 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020003452666
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. it may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. it is designed to mount on a shaft. for items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). excludes gear subassembly, speed decreaser.
Does nsn 3020003452666 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020003452666 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020003452666?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
36636
FIIG:
A270A0
App. Key:
A
Cond. Code:
1
Status:
A

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