Safety Relief Valve NSN 4820-00-824-9740

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: 4820-00-824-9740

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Features and Characteristics

Pipe Size Accommodated

0.250 inches 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Renewable Seat Ring Type

Retaining screw

Connection Style

G46b plain (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st end

Features Provided

Valve stem lock shield

Thready Qty Per Inch (tpi)

18 1st end

Power Drive Operating Pressure

7.0 pounds per square inch

Thread Size

0.250 inches 1st end

Opening Pressure Setting

7.0 pounds per square inch

Material

Rubber synthetic seat

Material Specification

Qq-b-626, comp aa, 1/2h federal specification single material response body

Style Designator

Err-090

Test Data Document

18876-9199041 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)

Thread Series Designator

Npt 1st end

FSC

4820 Nonpowered Valves

NIIN

008249740

NSN

4820008249740

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

9199041

Cage Code:

18876

Status:

MSDS:

Part Number:

C-13-A

Cage Code:

18876

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 4820-00-824-9740

What are the manufacturers of nsn 4820008249740?

U S Army Aviation And Missile (18876)

Does this nsn 4820008249740 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820008249740
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 4820008249740 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820008249740 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820008249740?
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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