Safety Relief Valve NSN 4820-00-223-8957

Item Description

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

NSN: 4820-00-223-8957

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Features and Characteristics

Thread Class

3b 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Bonnet Type

Inside spring

Bonnet Attachment Method

Integral

Disk Loading Method

Spring

Maximum Operating Temp

250.0 degrees fahrenheit single response

Connection Style

Gasket sea (boss) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded internal boss 1st end

Thready Qty Per Inch (tpi)

16 1st end

Maximum Operating Pressure

10500.0 pounds per square inch single response

Thread Size

0.750 inches 1st end

Seat Angle

37.0 degrees 1st end

Opening Pressure Setting

4500.0 pounds per square inch

Outside Diameter Tube Accommodated

0.500 inches 1st end

Material

Steel comp 303 seat

Media For Which Designed

Oil, hydraulic single response

Style Designator

Straight thru

Thread Series Designator

Unjf 1st end

FSC

4820 Nonpowered Valves

NIIN

002238957

NSN

4820002238957

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

5377T8BBL4500

Cage Code:

91816

Status:

MSDS:

Part Number:

332-2712-010

Cage Code:

95105

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 4820-00-223-8957

What are the manufacturers of nsn 4820002238957?

Does this nsn 4820002238957 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820002238957
A valve designed to automatically release excessive pressures. it is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. it is not designed for regulation of continuously fluctuating loads. it may be inline or cartridge (manifold) design. excludes valve (1), relief, pressure and temperature.

Does nsn 4820002238957 contain any precious metals?
No precious metal content.

Does nsn 4820002238957 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820002238957?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

App. Key:

Cond. Code:

Status:

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