Spur Antibacklash Gear NSN 3020-00-173-1830

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: 3020-00-173-1830

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Features and Characteristics

Attachment Method

Clamp

Pitch Diameter

Between 1.6396 inches and 1.6406 inches

Teeth Quantity

105

Bore Style

Plain both ends

Outside Diameter

1.673 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.221 inches first end

Face Width

0.104 inches

Bore Diameter

0.187 inches both ends

Hub Style Designator

Split first end

Hub Diameter

0.250 inches first end

Clamping Surface Length

0.190 inches first end

Precision Classification

Quality number 10

Material

Steel comp 303

Material Specification

Qq-s-764, type 303, cond a federal specification single material response

Surface Treatment

Passivate

Style Designator

Protruding hub

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

001731830

NSN

3020001731830

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

10236901-6

Cage Code:

18876

Status:

MSDS:

Part Number:

Z5E-105

Cage Code:

00328

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 3020-00-173-1830

What are the manufacturers of nsn 3020001731830?

U S Army Aviation And Missile (18876)
Designatronics Incorporated (00328)

Does this nsn 3020001731830 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020001731830
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 3020001731830 contain any precious metals?
Precious metal content is unknown.

Does nsn 3020001731830 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020001731830?
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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