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Safety Relief Valve NSN 4820-00-727-8028

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 4820-00-727-8028 NSN: 4820-00-727-8028

Features and Characteristics

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
18 2nd end
Maximum Operating Pressure
50.0 pounds per square inch single response
Thread Size
0.250 inches 2nd end
Opening Pressure Setting
25.0 pounds per square inch
Material
Steel comp 303 and rubber butadiene-acrylonitrile class nbr flow control device
Material Specification
Fed standard 66 federal standard 1st material response flow control device
Media For Which Designed
Gas, natural 2nd response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
007278028
NSN
4820007278028

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1390424
Cage Code:
10001
Status:
A
MSDS:
Part Number:
684-2-1-1/4B25
Cage Code:
86768
Status:
A
MSDS:
Part Number:
684-2-1/4B2
Cage Code:
86768
Status:
A
MSDS:
Part Number:
684-2-1/4B25
Cage Code:
86768
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 4820-00-727-8028
What are the manufacturers of nsn 4820007278028?
Does this nsn 4820007278028 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820007278028
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 4820007278028 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820007278028 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820007278028?
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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