Fire Check Valve NSN 4820-00-839-4313

Item Description

A valve which works on a thermostatic principle to stop and extinguish backfire in gas-air pipelines by utilizing the heat generated by the fire to actuate the mechanism which closes the valve. It also contains a swing check on the inlet connection which closes immediately upon shock caused by backfire, shutting off the gas-air mixture. It is designed for installation in a pipeline to feed gas-air mixtures to burners and the like.

NSN: 4820-00-839-4313

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Features and Characteristics

Body Material

Bronze

Body Style

A1 straight thru

Stem Material

Bronze

Tempurature Rating

165.0 degrees fahrenheit

Media For Which Designed

Any acceptable

First End Connection Type

Threaded internal pipe

First End Style Designator

Plain

First End Pipe Size Accommodated

2.500 inches

First End Thread Direction

Right-hand

Second End Relationship With First End

Not identical

Second End Connection Type

Threaded external pipe

Second End Style Designator

Plain

Second End Pipe Size Accommodated

3.000 inches

Second End Thread Direction

Right-hand

Seat Material

Bronze

Flow Control Device

Disk, flat, top and bottom guided

Flow Control Device Material

Rubber, buna-n

End Connection Quantity

FSC

4820 Nonpowered Valves

NIIN

008394313

NSN

4820008394313

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

177LH

Cage Code:

81718

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481809050
NAICS: 332911
SITC: 74780
Description: Other taps, cocks, valves, etc., nesoi
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-839-4313

What are the manufacturers of nsn 4820008394313?

Opw Fueling Components Inc. (81718)

Does this nsn 4820008394313 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820008394313
A valve which works on a thermostatic principle to stop and extinguish backfire in gas-air pipelines by utilizing the heat generated by the fire to actuate the mechanism which closes the valve. it also contains a swing check on the inlet connection which closes immediately upon shock caused by backfire, shutting off the gas-air mixture. it is designed for installation in a pipeline to feed gas-air mixtures to burners and the like.

Does nsn 4820008394313 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820008394313 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820008394313?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

16997

FIIG:

A07100

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
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