Pressure And Temper Relief Valve NSN 4820-01-198-4203

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: 4820-01-198-4203

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Features and Characteristics

Body Material

Steel, federal standard 66, aisi 316/sae 30316

Body Style

Straight thru

Stem Material

Steel, federal standard 66, aisi 316/sae 30316

Tempurature Rating

125.0 degrees fahrenheit

Media For Which Designed

Hydraulic fluid, silicate-ester base

First End Connection Type

Threaded internal boss

First End Style Designator

Swivel nut, gasket seal

First End Thread Class

First End Thread Direction

Right-hand

Second End Relationship With First End

Not identical

Second End Connection Type

Threaded external boss

Second End Style Designator

Flared

Second End Thread Class

Second End Thread Direction

Right-hand

Seat Material

Steel, federal standard 66, aisi 316/sae 30316

Face To Face Distance

2.890 inches

Flow Control Device

Disk, flat

End Connection Quantity

Opening Pressure Setting

80.0 pounds per square inch

Valve Discharge Flow Rate

10.0 gallons per minute

Tempurature Adjustability

Not adjustable

Tempurature Control Device Type

Thermostatic

First End Thread Series Designator

Unjf

First End Thread Size

0.750 inches

Second End Thread Size

0.750 inches

Second End Thread Series Designator

Unj

FSC

4820 Nonpowered Valves

NIIN

011984203

NSN

4820011984203

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

5189443

Cage Code:

53711

Status:

MSDS:

Part Number:

H776A

Cage Code:

06239

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 4820-01-198-4203

What are the manufacturers of nsn 4820011984203?

Naval Sea Systems Command (53711)
Ausco,inc. (06239)

Does this nsn 4820011984203 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820011984203
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 4820011984203 contain any precious metals?
No precious metal content.

Does nsn 4820011984203 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820011984203?
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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