Spur Antibacklash Gear NSN 3020-01-486-6752

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: 3020-01-486-6752

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Features and Characteristics

End Application

Transmitter unit assembly p/n 1981509; navigational systems

Pitch Diameter

2.0313 inches

Teeth Quantity

130

Bore Style

Plain both ends

Outside Diameter

2.063 inches

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.325 inches first end

Face Width

0.104 inches

Bore Diameter

0.250 inches both ends

Hub Style Designator

Plain first end

Hub Diameter

0.437 inches first end

Part Name Assigned By Controlling Agency

Gear, anti-backlash, 130 teeth, pin type

Special Features

Modified from sterling instrument p/n s9706a-z6e130ap with preload at 6 teeth and .0634 dia. Hole and bore as specified

Material

Steel comp 302 spring

Surface Treatment

Anodize

Style Designator

Protruding hub

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

014866752

NSN

3020014866752

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

1812860

Cage Code:

03956

Status:

MSDS:

Part Number:

1981509 PC 15

Cage Code:

03956

Status:

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 3020-01-486-6752

What are the manufacturers of nsn 3020014866752?

Northrop Grumman Systems Corporation (03956)

Does this nsn 3020014866752 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020014866752
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 3020014866752 contain any precious metals?
No precious metal content.

Does nsn 3020014866752 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020014866752?
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:

Cond. Code:

Status:

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