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Safety Relief Valve NSN 4820-00-542-5820

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 4820-00-542-5820 NSN: 4820-00-542-5820

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Features and Characteristics

Pipe Size Accommodated
0.500 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Thready Qty Per Inch (tpi)
14 1st end
Adjustable Pressure Range
+551.0/+800.0 pounds per square inch
Maximum Operating Pressure
800.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Special Features
Inlet bored for high pressure
Material
Copper alloy body
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
005425820
NSN
4820005425820

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
F3287229PC457
Cage Code:
80064
Status:
A
MSDS:
Part Number:
FIG1768
Cage Code:
37239
Status:
A
MSDS:
Part Number:
5223B
Cage Code:
93236
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 4820-00-542-5820
What are the manufacturers of nsn 4820005425820?
Does this nsn 4820005425820 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820005425820
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 4820005425820 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820005425820 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820005425820?
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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