Pressure And Temper Relief Valve NSN 4820-01-621-8959

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: 4820-01-621-8959

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Features and Characteristics

Body Material

Brass

Body Style

Angle give "adqm" and "adqn" only when flanged both ends

Tempurature Rating

250.0 degrees fahrenheit

First End Connection Type

Threaded internal pipe

First End Style Designator

Socket

First End Pipe Size Accommodated

0.25 inches

First End Thread Direction

Right-hand

Second End Relationship With First End

Not identical

Flow Control Device

Poppet

Flow Control Device Material

Rubber, synthetic

End Connection Quantity

Adjustable Pressure Range

+25.0 to 350.0 pounds per square inch

Tempurature Adjustability

Not adjustable

First End Thread Series Designator

Npt

Part Name Assigned By Controlling Agency

Air safety valve

FSC

4820 Nonpowered Valves

NIIN

016218959

NSN

4820016218959

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

ST25-1A200

Cage Code:

58818

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 4820-01-621-8959

What are the manufacturers of nsn 4820016218959?

Control Devices, Incorporated (58818)

Does this nsn 4820016218959 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820016218959
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 4820016218959 contain any precious metals?
No precious metal content.

Does nsn 4820016218959 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820016218959?
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
Quality Inspected Parts
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