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Spur Gear NSN 3020-00-049-8521

Item Description

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

NSN 3020-00-049-8521 NSN: 3020-00-049-8521

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Features and Characteristics

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
8.1250 inches
Teeth Quantity
390
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc axially through body, first end
Mounting Hole Thready Qty Per Inch (tpi)
40 axially through body, first end
Mounting Hole Thread Size
0.112 inches axially through body, first end
Mounting Hole Type And Quantity
4 threaded axially through body, first end
Outside Diameter
8.167 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.125 inches
Bore Diameter
7.500 inches both ends
Precision Classification
Quality number 5 or quality number 6
Bolt Hole Circle Diameter
7.750 inches axially through body, first end
Material
Copper alloy
Style Designator
Hubless
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
000498521
NSN
3020000498521

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1937-2-B101
Cage Code:
06003
Status:
A
MSDS:
Part Number:
1937-2B101REV1
Cage Code:
06003
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 3020-00-049-8521
What are the manufacturers of nsn 3020000498521?
Does this nsn 3020000498521 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020000498521
A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. see also gear, antibacklash, spur. for bulk material, see rod, pinion.
Does nsn 3020000498521 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020000498521 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020000498521?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
App. Key:
AH
Cond. Code:
1
Status:
A

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