Spur Antibacklash Gear NSN 3020-00-907-8578

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: 3020-00-907-8578

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Features and Characteristics

Attachment Method

Mounting hole

Pitch Diameter

0.5420 inches

Teeth Quantity

Bore Style

Plain both ends

Mounting Hole Thread Series Designator

Unf transversely through hub, first end

Mounting Hole Thready Qty Per Inch (tpi)

80 transversely through hub, first end

Mounting Hole Thread Size

0.060 inches transversely through hub, first end

Mounting Hole Type And Quantity

2 threaded transversely through hub, first end

Outside Diameter

0.5540 inches

Nominallength

0.218 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.125 inches first end

Face Width

0.093 inches

Bore Diameter

0.101 inches both ends

Hub Style Designator

Plain first end

Hub Diameter

0.250 inches first end

Material

Steel comp 303

Material Specification

Qq-s-763, class303 federal specification single material response

Surface Treatment

Passivate

Style Designator

Protruding hub

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

009078578

NSN

3020009078578

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

209084

Cage Code:

1K426

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 3020-00-907-8578

What are the manufacturers of nsn 3020009078578?

Moog Inc. (1K426)
Moog Inc. (99932)

Does this nsn 3020009078578 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020009078578
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 3020009078578 contain any precious metals?
No precious metal content.

Does nsn 3020009078578 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020009078578?
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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Certificate of Conformance
Quality Inspected Parts
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