Safety Relief Valve NSN 4820-00-875-9778

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: 4820-00-875-9778

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Features and Characteristics

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Valve Discharge Flow Rate

6.0 gallons per minute

Maximum Operating Temp

275.0 degrees fahrenheit 2nd response

Connection Style

G45 flareless (tube) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external tube all ends

Features Provided

Pressure tight outlet side

Maximum Operating Pressure

2500.0 pounds per square inch single response

Thread Size

0.750 inches all ends

Seat Angle

12.0 degrees all ends

Opening Pressure Setting

305.0 pounds per square inch

Outside Diameter Tube Accommodated

0.500 inches all ends

Material

Stainless steel

Media For Which Designed

Ammonia, liquid 4th response

Surface Treatment

Passivate

Style Designator

Err-090

Test Data Document

18876-10105580 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

Unjf all ends

FSC

4820 Nonpowered Valves

NIIN

008759778

NSN

4820008759778

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

5177T-8EE-305

Cage Code:

91816

Status:

MSDS:

Part Number:

10105580

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 4820-00-875-9778

What are the manufacturers of nsn 4820008759778?

Circor Aerospace, Inc. (91816)
U S Army Aviation And Missile (18876)
Pegasus Savunma San. Ve Tic.ltd.sti. (T6976)

Does this nsn 4820008759778 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820008759778
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 4820008759778 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820008759778 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820008759778?
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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