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Safety Relief Valve NSN 4820-00-413-3144

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 4820-00-413-3144 NSN: 4820-00-413-3144

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Features and Characteristics

Thread Class
2b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Piston
Disk Loading Method
Spring
Valve Discharge Flow Rate
40.0 gallons per minute
Connection Style
Gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Features Provided
Pressure tight outlet side
Maximum Operating Pressure
4000.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
2500.0 pounds per square inch
Material
Steel seat
Media For Which Designed
Fuel/oil, hydrocarbon single response
Style Designator
Angle
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
004133144
NSN
4820004133144

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1L21F4T40S
Cage Code:
8Z296
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 4820-00-413-3144
What are the manufacturers of nsn 4820004133144?
Does this nsn 4820004133144 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004133144
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 4820004133144 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004133144 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004133144?
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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