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Safety Relief Valve NSN 4820-00-289-1144

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 4820-00-289-1144 NSN: 4820-00-289-1144

Features and Characteristics

Pipe Size Accommodated
1.000 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
513.0 pounds per hour
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic or manual
Connection Type
Threaded internal pipe 2nd end
Features Provided
Bonnet packing
Thread Size
1.000 inches 1st end
Opening Pressure Setting
30.0 pounds per square inch
Material
Copper alloy body
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
002891144
NSN
4820002891144

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
240 3-4IN30
Cage Code:
39305
Status:
A
MSDS:
Part Number:
10-102-05
Cage Code:
72219
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 4820-00-289-1144
What are the manufacturers of nsn 4820002891144?
Does this nsn 4820002891144 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002891144
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 4820002891144 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002891144 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002891144?
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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