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Spur Antibacklash Gear NSN 3020-00-771-0598

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 3020-00-771-0598 NSN: 3020-00-771-0598

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Features and Characteristics

Attachment Method
Mounting hole
Pitch Diameter
1.9218 inches
Teeth Quantity
123
Bore Style
Plain both ends
Backlash Designation
Grade c
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
32 transversely through hub, first end
Mounting Hole Thread Size
0.138 inches transversely through hub, first end
Mounting Hole Type And Quantity
2 threaded transversely through hub, first end
Outside Diameter
1.952 inches
Nominallength
0.578 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.037 inches second end
Face Width
0.114 inches
Bore Diameter
0.250 inches both ends
Hub Style Designator
Plain second end
Hub Diameter
0.813 inches second end
End Length
0.046 inches first end
Precision Classification
Quality number 10
End Diameter
0.748 inches first end
First Step Length
0.047 inches first end
First Step Diameter
1.000 inches first end
Second Step Length
0.297 inches first end
Second Step Diameter
0.748 inches first end
Third Step Length
0.037 inches first end
Third Step Diameter
1.000 inches first end
First Groove Width
0.270 inches first end
First Groove Diameter
0.747 inches first end
Distance From End To First Groove
0.093 inches first end
Special Features
Mtg holes 90 degs apart
Material
Aluminum alloy hub
Surface Treatment
Anodize
Style Designator
Protruding hubs
FSC
3020 Transmission Chain Sprockets Pulleys Gears
NIIN
007710598
NSN
3020007710598

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
9174827
Cage Code:
18876
Status:
A
MSDS:
Part Number:
VCAA103PRECISI0N
Cage Code:
01147
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 3020-00-771-0598
What are the manufacturers of nsn 3020007710598?
Does this nsn 3020007710598 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3020007710598
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 3020007710598 contain any precious metals?
Precious metal content is unknown.
Does nsn 3020007710598 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3020007710598?
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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