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Safety Relief Valve NSN 4820-01-439-3523

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 4820-01-439-3523 NSN: 4820-01-439-3523

  Stock Availability

NSN 4820014393523 availability
(as of 03/18/2024).

  • NE: 7

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
End Application
Fighter aircraft; mcdonnell douglas, f-16
Connection Style
G43 external seat for gasket seal (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
20 all ends
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
50.0 pounds per square inch
Material
Steel comp 303 flow control device
Media For Which Designed
Helium single response
Surface Treatment
Anodize
Style Designator
Err-090
Thread Series Designator
Unj all ends
FSC
4820 Nonpowered Valves
NIIN
014393523
NSN
4820014393523

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6880-1-000
Cage Code:
1DRT7
Status:
A
MSDS:
Part Number:
586R696
Cage Code:
97942
Status:
A
MSDS:
Part Number:
586R696H01
Cage Code:
97942
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 4820-01-439-3523
What are the manufacturers of nsn 4820014393523?
Does this nsn 4820014393523 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014393523
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 4820014393523 contain any precious metals?
No precious metal content.
Does nsn 4820014393523 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014393523?
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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