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Safety Relief Valve NSN 4820-01-562-1447

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 4820-01-562-1447 NSN: 4820-01-562-1447

Features and Characteristics

Flow Control Device
Piston
Disk Loading Method
Spring
Valve Discharge Flow Rate
12.0 gallons per minute
End Application
Astute class submarine
Valve Operation Method
Manual
Maximum Operating Pressure
2540.0 pounds per square inch single response
Part Name Assigned By Controlling Agency
Cartridge: relief: 2-port: pilot operated, balance piston
Special Features
Closed pressure regulating valve; pressure at inlet (port 1) reaches valve setting, valve starts to open tank (port 2) throttling flow to regulate pressure; valve is accurate, has low pressure rise vs flow; smooth, quiet, and moderately fast
FSC
4820 Nonpowered Valves
NIIN
015621447
NSN
4820015621447

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
RPCC-LWN@2540
Cage Code:
54035
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 4820-01-562-1447
What are the manufacturers of nsn 4820015621447?
Does this nsn 4820015621447 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015621447
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 4820015621447 contain any precious metals?
No precious metal content.
Does nsn 4820015621447 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015621447?
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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