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Safety Relief Valve NSN 4820-01-322-6603

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 4820-01-322-6603 NSN: 4820-01-322-6603

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Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
450.0 degrees fahrenheit single response
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Opening Pressure Setting
12.0 pounds per square inch
Material
Copper alloy seat
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
Furnished Items And Quantity
1 cap
FSC
4820 Nonpowered Valves
NIIN
013226603
NSN
4820013226603

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3/8-1471 SET 12
Cage Code:
16497
Status:
A
MSDS:
Part Number:
318-1471 SET 12 PSI
Cage Code:
16497
Status:
A
MSDS:
Part Number:
214675
Cage Code:
16497
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 4820-01-322-6603
What are the manufacturers of nsn 4820013226603?
Does this nsn 4820013226603 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013226603
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 4820013226603 contain any precious metals?
No precious metal content.
Does nsn 4820013226603 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013226603?
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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