Safety Relief Valve NSN 4820-00-473-4214

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: 4820-00-473-4214

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Features and Characteristics

Pipe Size Accommodated

1.250 inches 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Maximum Operating Temp

400.0 degrees fahrenheit single response

Connection Style

Plain, optional en (pipe) 1st end

Valve Operation Method

Automatic or manual

Connection Type

Threaded internal pipe 1st end

Features Provided

Pressure tight outlet side

Adjustable Pressure Range

+31.0/+60.0 pounds per square inch

Maximum Operating Pressure

250.0 pounds per square inch single response

Thread Size

1.250 inches 2nd end

Material

Steel stem

Material Specification

Qq-c-390, aloy b5/d federal specification single material response seat

Media For Which Designed

Steam single response

Style Designator

Angle

Thread Series Designator

Npt 1st end

Reference Number Differentiating Characteristics

As differentiated by pressure setting range

FSC

4820 Nonpowered Valves

NIIN

004734214

NSN

4820004734214

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

2606-1-1-4

Cage Code:

14959

Status:

MSDS:

Part Number:

422-4805-934639ALT1PCV4

Cage Code:

53711

Status:

MSDS:

Part Number:

422-4805-934640PCV4

Cage Code:

53711

Status:

MSDS:

Part Number:

6963-422PCV4

Cage Code:

81316

Status:

MSDS:

Part Number:

6964-622PCV4

Cage Code:

81316

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 4820-00-473-4214

What are the manufacturers of nsn 4820004734214?

Does this nsn 4820004734214 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004734214
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 4820004734214 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820004734214 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004734214?
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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