Pressure And Temper Relief Valve NSN 4820-01-640-6689

Item Description

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

NSN: 4820-01-640-6689

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Features and Characteristics

Body Style

Straight thru

Tempurature Rating

140.0 degrees fahrenheit

First End Thread Class

Second End Relationship With First End

Not identical

Second End Width Across Flats

1.000 inches

Body Outside Diameter

1.000 inches

End Connection Quantity

Opening Pressure Setting

4500.0 pounds per square inch

End Application

Ch/mh-53; nha: 65664-03010-011/013

First End Thread Series Designator

Unjf

First End Thread Size

0.4375 inches

Special Features

Service: dry air or dry nitrogen; temp. Range: m31/p140 degrees f; pressure ratings: operating: 3000 psig @ 68 degrees f; crack: 4500+/- 150 psig; reseat: 4100 psig min; proof: 5000 psig: burst: 7500 psig; rated flow: 0.31 lb/minute at 5000 psig max; leakage: none below 4100 psig; acceptance test per 43942175

Supplementary Features

One inlet; two outlets

FSC

4820 Nonpowered Valves

NIIN

016406689

NSN

4820016406689

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

23942175-1

Cage Code:

99221

Status:

MSDS:

Foreign Trade & Schedule B

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

Schedule B Number: 8481400000
NAICS: 332911
SITC: 74740
Description: Safety or relief valves
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-640-6689

What are the manufacturers of nsn 4820016406689?

Tavco Inc. (99221)

Does this nsn 4820016406689 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820016406689
A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. thermostatically operated valves close when the pressure is relieved or the temperature is reduced. fusible plug valves require replacement of the plug. see also valve, safety relief and valve, regulating. temperature.

Does nsn 4820016406689 contain any precious metals?
No precious metal content.

Does nsn 4820016406689 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820016406689?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

16996

FIIG:

A07100

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
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