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Safety Relief Valve NSN 4820-00-287-4089

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 4820-00-287-4089 NSN: 4820-00-287-4089

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Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Exposed spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
31.0 cubic feet per minute
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic or manual
Connection Type
Threaded external pipe all ends
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.375 inches all ends
Opening Pressure Setting
50.0 pounds per square inch
Material
Copper alloy
Media For Which Designed
Gas, natural 2nd response
Style Designator
Angle
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
002874089
NSN
4820002874089

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
EN25-66
Cage Code:
0CSK6
Status:
A
MSDS:
Part Number:
48SIZE3-8 50PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
FIG48-3-8-50LB
Cage Code:
01343
Status:
A
MSDS:
Part Number:
FIG48SIZE3-8-50PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
70607
Cage Code:
15434
Status:
A
MSDS:
Part Number:
A9052
Cage Code:
46522
Status:
A
MSDS:
Part Number:
A9052KITAK67
Cage Code:
46522
Status:
A
MSDS:
Part Number:
16553
Cage Code:
93742
Status:
A
MSDS:
Part Number:
B2916
Cage Code:
01343
Status:
A
MSDS:
Part Number:
00664-0368
Cage Code:
93568
Status:
A
MSDS:
Part Number:
1603496
Cage Code:
50019
Status:
A
MSDS:
Part Number:
2510
Cage Code:
93472
Status:
A
MSDS:
Part Number:
664-368
Cage Code:
93568
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 4820-00-287-4089
What are the manufacturers of nsn 4820002874089?
Does this nsn 4820002874089 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002874089
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 4820002874089 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002874089 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002874089?
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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