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Safety Relief Valve NSN 4820-00-287-4264

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 4820-00-287-4264 NSN: 4820-00-287-4264

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Features and Characteristics

Pipe Size Accommodated
0.500 inches 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Exposed spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Renewable Seat Ring Type
Retaining screw
Maximum Operating Temp
550.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic or manual
Connection Type
Threaded internal pipe 1st end
Features Provided
Valve stem lock shield and pressure tight outlet side
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Opening Pressure Setting
250.0 pounds per square inch
Material
Nickel alloy flow control device
Media For Which Designed
Steam single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
002874264
NSN
4820002874264

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
214-4900-799254PCV780
Cage Code:
53711
Status:
A
MSDS:
Part Number:
271-4900-957265PCV780
Cage Code:
53711
Status:
A
MSDS:
Part Number:
319-4900-1188487PCV904
Cage Code:
53711
Status:
A
MSDS:
Part Number:
346-4900-484711PCV782
Cage Code:
53711
Status:
A
MSDS:
Part Number:
389588PCV780
Cage Code:
53711
Status:
A
MSDS:
Part Number:
533115PCV782
Cage Code:
53711
Status:
A
MSDS:
Part Number:
571-3801-1302581PCV3
Cage Code:
53711
Status:
A
MSDS:
Part Number:
340-4900-1000937PVC5
Cage Code:
80064
Status:
A
MSDS:
Part Number:
3664-33PCV3
Cage Code:
96169
Status:
A
MSDS:
Part Number:
44-1-2-176-250
Cage Code:
37239
Status:
A
MSDS:
Part Number:
2076-16PCV780
Cage Code:
96169
Status:
A
MSDS:
Part Number:
2476-16PCV782
Cage Code:
96169
Status:
A
MSDS:
Part Number:
2776-23PCV782
Cage Code:
96169
Status:
A
MSDS:
Part Number:
3376-12PCV904
Cage Code:
96169
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 4820-00-287-4264
What are the manufacturers of nsn 4820002874264?
Does this nsn 4820002874264 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002874264
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 4820002874264 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002874264 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002874264?
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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