Safety Relief Valve NSN 4820-01-421-0122

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: 4820-01-421-0122

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Features and Characteristics

Thread Class

3b 2nd end

Thread Direction

Right-hand all ends

Disk Loading Method

Spring

Maximum Operating Temp

160.0 degrees fahrenheit single response

Minimum Operating Temp

-65.0 degrees fahrenheit

End Application

Aircraft, airlifter c-17a

Connection Style

G4 gasket sea (boss) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded internal boss 2nd end

Maximum Operating Pressure

150.0 pounds per square inch single response

Thread Size

0.563 inches all ends

Seat Angle

37.0 degrees 1st end

Material

Steel comp 316 flow control device

Material Specification

Qq-s-763 federal specification single material response flow control device or astm a479 assn standard single material response flow control device

Media For Which Designed

Water, fresh single response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Err-090

Thread Series Designator

Unjf all ends

FSC

4820 Nonpowered Valves

NIIN

014210122

NSN

4820014210122

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

RV05-203-06

Cage Code:

91816

Status:

MSDS:

Part Number:

7D0150-06

Cage Code:

88277

Status:

MSDS:

Part Number:

7D0150

Cage Code:

88277

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 4820-01-421-0122

What are the manufacturers of nsn 4820014210122?

Circor Aerospace, Inc. (91816)
Boeing Company, The (88277)

Does this nsn 4820014210122 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014210122
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 4820014210122 contain any precious metals?
No precious metal content.

Does nsn 4820014210122 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014210122?
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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Certificate of Conformance
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