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Spur Antibacklash Gear NSN 3020-01-115-2816

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 3020-01-115-2816 NSN: 3020-01-115-2816

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Features and Characteristics

Attachment Method
Mounting hole
Pitch Diameter
3.6250 inches
Teeth Quantity
232
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thread Size
0.086 inches transversely through hub, first end
Mounting Hole Type And Quantity
1 threaded transversely through hub, first end
Outside Diameter
3.6560 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.281 inches first end
Face Width
0.104 inches
Bore Diameter
0.250 inches both ends
Hub Style Designator
1 step first end
End Length
0.250 inches first end
Precision Classification
Quality number 10
End Diameter
0.500 inches first end
First Step Length
0.031 inches first end
First Step Diameter
0.438 inches first end
Material
Steel comp 303
Material Specification
Qq-s-764, type 303 federal specification single material response
Surface Treatment
Passivate hub
Surface Treatment Specification
Qq-p-35, type 1 federal specification single treatment response
Style Designator
Protruding hub
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
011152816
NSN
3020011152816

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P17-3-232
Cage Code:
00141
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 3020-01-115-2816
What are the manufacturers of nsn 3020011152816?
Does this nsn 3020011152816 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020011152816
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 3020011152816 contain any precious metals?
No precious metal content.
Does nsn 3020011152816 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020011152816?
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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