Spur Antibacklash Gear NSN 3020-01-180-6231

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: 3020-01-180-6231

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Features and Characteristics

Pitch Diameter

0.7813 inches

Teeth Quantity

Bore Style

Plain both ends

Outside Diameter

0.813 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.220 inches first end

Face Width

0.125 inches

Bore Diameter

0.125 inches both ends

Hub Style Designator

Pinned first end

Hub Diameter

0.375 inches first end

Precision Classification

Quality number 12

Material

Steel comp 303 hub

Material Specification

Qq-s-764, cond a federal specification single material response hub

Surface Treatment

Passivate hub

Surface Treatment Specification

Mil-f-14072, finish e300 military specification single treatment response hub

Style Designator

Protruding hub

Furnished Items And Quantity

1 retaining ring and 1 spring

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

011806231

NSN

3020011806231

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

13084036

Cage Code:

58260

Status:

MSDS:

Part Number:

13084036-1

Cage Code:

04939

Status:

MSDS:

Part Number:

MAB250-50,P2/.345

Cage Code:

01351

Status:

MSDS:

Part Number:

MM15040

Cage Code:

06983

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 3020-01-180-6231

What are the manufacturers of nsn 3020011806231?

Does this nsn 3020011806231 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020011806231
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 3020011806231 contain any precious metals?
No precious metal content.

Does nsn 3020011806231 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020011806231?
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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