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Safety Relief Valve NSN 4820-01-570-8367

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 4820-01-570-8367 NSN: 4820-01-570-8367

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Pressure seal, ring type
Disk Loading Method
Spring
Valve Discharge Flow Rate
31.0 gallons per minute
Maximum Operating Temp
406.0 degrees fahrenheit single response
Minimum Operating Temp
-60.0 degrees fahrenheit
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
1.250 inches 2nd end
Opening Pressure Setting
25.0 pounds per square inch
Part Name Assigned By Controlling Agency
Relief valve
Special Features
Pressure tight cap; commercial valve; replaces 20-1 1/4-2s
Material
Bronze
Media For Which Designed
Liquid single response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
015708367
NSN
4820015708367

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0020-F01-MG0025
Cage Code:
1X5W8
Status:
A
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 4820-01-570-8367
What are the manufacturers of nsn 4820015708367?
Does this nsn 4820015708367 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015708367
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 4820015708367 contain any precious metals?
No precious metal content.
Does nsn 4820015708367 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015708367?
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:
AP
Cond. Code:
1
Status:
A

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