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Safety Relief Valve NSN 4820-00-346-1870

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 4820-00-346-1870 NSN: 4820-00-346-1870

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Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic or manual
Connection Type
Threaded external pipe all ends
Maximum Operating Pressure
180.0 pounds per square inch 1st response
Thread Size
0.250 inches all ends
Opening Pressure Setting
165.0 pounds per square inch
Material
Copper alloy
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Style Designator
Angle
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
003461870
NSN
4820003461870

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
850159
Cage Code:
82722
Status:
A
MSDS:
Part Number:
850159PSI165
Cage Code:
82722
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 4820-00-346-1870
What are the manufacturers of nsn 4820003461870?
Does this nsn 4820003461870 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003461870
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 4820003461870 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003461870 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003461870?
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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