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Safety Relief Valve NSN 4820-00-289-1809

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 4820-00-289-1809 NSN: 4820-00-289-1809

Features and Characteristics

Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
406.0 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
Adjustable Pressure Range
+16.0/+30.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.750 inches 2nd end
Material
Steel stem
Material Specification
Qq-c-390, alloyb5/d/ federal specification single material response body
Media For Which Designed
Steam single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
002891809
NSN
4820002891809

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2606 3-4
Cage Code:
14959
Status:
A
MSDS:
Part Number:
K966
Cage Code:
14959
Status:
A
MSDS:
Part Number:
2611-3-4-90PSI
Cage Code:
14959
Status:
A
MSDS:
Part Number:
2611 3-4 90
Cage Code:
14959
Status:
A
MSDS:
Part Number:
150-3/4X3/4 FIG 150-A
Cage Code:
14915
Status:
A
MSDS:
Part Number:
150-A 3/4
Cage Code:
14915
Status:
A
MSDS:
Part Number:
2501 3-4
Cage Code:
14959
Status:
A
MSDS:
Part Number:
150-A-3/4X3/4
Cage Code:
14959
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 4820-00-289-1809
What are the manufacturers of nsn 4820002891809?
Does this nsn 4820002891809 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002891809
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 4820002891809 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002891809 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002891809?
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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