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Safety Relief Valve NSN 4820-00-491-3047

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 4820-00-491-3047 NSN: 4820-00-491-3047

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Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Maximum Operating Pressure
125.0 pounds per square inch single response
Thread Size
2.000 inches 1st end
Opening Pressure Setting
30.0 pounds per square inch
Material
Steel flow control device
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
004913047
NSN
4820004913047

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
240
Cage Code:
39305
Status:
A
MSDS:
Part Number:
260-1-1/2IN
Cage Code:
39305
Status:
A
MSDS:
Part Number:
3301
Cage Code:
1N911
Status:
A
MSDS:
Part Number:
3301-30
Cage Code:
06631
Status:
A
MSDS:
Part Number:
240-1-1-21N30
Cage Code:
39305
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 4820-00-491-3047
What are the manufacturers of nsn 4820004913047?
Does this nsn 4820004913047 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004913047
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 4820004913047 contain any precious metals?
No precious metal content.
Does nsn 4820004913047 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004913047?
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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