Gear Cluster NSN 3020-01-285-9139

Item Description

A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes gear subassembly, speed decreaser.

NSN: 3020-01-285-9139

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Features and Characteristics

End Application

Forward fuselage b-1b acft

Bore Style

Plain both ends

Design Type

Spur all gears

Construction

Solid

Outside Diameter

4.642 inches second gear

Nominallength

1.062 inches

Hub Length

0.500 inches first end

Bore Diameter

0.378 inches both ends

Hub Style Designator

Plain first end

Hub Diameter

1.666 inches first end

Precision Classification

Quality number 8 all gears

Special Features

1st gear data: 18 teeth; diametral pitch 12; pitch dia. 1.5000; 2nd gear data: 54 teeth; diametral pitch 12/14; pitch diameter 4.5000

Material

Steel comp 9310h

Material Specification

Ams6260 assn standard single material response

Surface Treatment

Phosphate

Surface Treatment Specification

Mil-p-16232 military specification single treatment response

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

012859139

NSN

3020012859139

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

BMC-005

Cage Code:

06607

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 3020-01-285-9139

What are the manufacturers of nsn 3020012859139?

Blanchat Machine Company Inc (06607)

Does this nsn 3020012859139 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020012859139
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. it may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. it is designed to mount on a shaft. for items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). excludes gear subassembly, speed decreaser.

Does nsn 3020012859139 contain any precious metals?
No precious metal content.

Does nsn 3020012859139 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020012859139?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

36636

FIIG:

A270A0

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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