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Safety Relief Valve NSN 4820-00-959-7300

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 4820-00-959-7300 NSN: 4820-00-959-7300

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
Valve Discharge Flow Rate
10.7 gallons per minute
Maximum Operating Temp
406.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 1st endg9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic or manual
Connection Type
Threaded external pipe 1st endthreaded internal pipe 2nd end
Features Provided
Valve stem lock shield
Thready Qty Per Inch (tpi)
14 2nd end
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
1.000 inches 1st end
Opening Pressure Setting
30.0 pounds per square inch
Material
Steel stem
Media For Which Designed
Water, fresh single response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
009597300
NSN
4820009597300

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3/4-2478D-XDA
Cage Code:
38056
Status:
A
MSDS:
Part Number:
1479
Cage Code:
38056
Status:
A
MSDS:
Part Number:
2478D OPEN LIFTING ARM
Cage Code:
38056
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 4820-00-959-7300
What are the manufacturers of nsn 4820009597300?
Does this nsn 4820009597300 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820009597300
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 4820009597300 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820009597300 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820009597300?
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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