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Safety Relief Valve NSN 4820-00-287-2989

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 4820-00-287-2989 NSN: 4820-00-287-2989

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
450.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic or manual
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+28.0/+45.0 pounds per square inch
Maximum Operating Pressure
200.0 pounds per square inch single response
Material
Nickel alloy flow control device
Material Specification
Qq-n-288, compa federal specification single material response flow control device
Media For Which Designed
Air 1st response
Style Designator
Angle
Furnished Items And Quantity
1 wrench
FSC
4820 Nonpowered Valves
NIIN
002872989
NSN
4820002872989

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5VAG72
Cage Code:
16497
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 4820-00-287-2989
What are the manufacturers of nsn 4820002872989?
Does this nsn 4820002872989 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002872989
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 4820002872989 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002872989 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002872989?
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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