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Safety Relief Valve NSN 4820-00-407-2581

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 4820-00-407-2581 NSN: 4820-00-407-2581

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Major End Items End items to which 4820-00-407-2581 is a component of

  • N/A Liquid Fuel Filter-separator

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Stem
Maximum Operating Temp
160.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Manual
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
225.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Material
Copper alloy
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
004072581
NSN
4820004072581

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
16811
Cage Code:
53964
Status:
A
MSDS:
Part Number:
2D200B
Cage Code:
82829
Status:
A
MSDS:
Part Number:
13216E2798
Cage Code:
97403
Status:
A
MSDS:
Part Number:
119039
Cage Code:
01400
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 4820-00-407-2581
What are the manufacturers of nsn 4820004072581?
Does this nsn 4820004072581 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004072581
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 4820004072581 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004072581 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004072581?
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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