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Safety Relief Valve NSN 4820-01-052-2451

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 4820-01-052-2451 NSN: 4820-01-052-2451

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
120.0 degrees fahrenheit single response
End Application
Advanced air traffic control and land system (atcals) 404l
Connection Style
G50 external seat for gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Maximum Operating Pressure
140.0 pounds per square inch single response
Thread Size
0.437 inches 1st end
Material
Aluminum alloy 2024
Media For Which Designed
Nitrogen, gaseous 2nd response
Style Designator
Err-090
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
010522451
NSN
4820010522451

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P100-673-10
Cage Code:
91816
Status:
A
MSDS:
Part Number:
584516-1
Cage Code:
3B150
Status:
A
MSDS:
Part Number:
584516
Cage Code:
49956
Status:
A
MSDS:
Part Number:
D599A4D10
Cage Code:
91816
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 4820-01-052-2451
What are the manufacturers of nsn 4820010522451?
Does this nsn 4820010522451 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010522451
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 4820010522451 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010522451 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010522451?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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