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Safety Relief Valve NSN 4820-00-478-3319

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 4820-00-478-3319 NSN: 4820-00-478-3319

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit 2nd response
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
5.0 pounds per square inch
Special Features
Inline type
Material
Steel comp 416 seat
Material Specification
Qq-s-764, type 416, cond h-canceled federal specification single material response seat
Media For Which Designed
Hydrogen 5th response
Style Designator
Straight through note: to be used for valve bodies of one section only.
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
004783319
NSN
4820004783319

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2587006
Cage Code:
80064
Status:
A
MSDS:
Part Number:
559T-2MP-5
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 4820-00-478-3319
What are the manufacturers of nsn 4820004783319?
Does this nsn 4820004783319 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004783319
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 4820004783319 contain any precious metals?
No precious metal content.
Does nsn 4820004783319 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004783319?
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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