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Safety Relief Valve NSN 4820-00-956-0641

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 4820-00-956-0641 NSN: 4820-00-956-0641

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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 screw
Bonnet Attachment Method
Threaded
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Opening Pressure Setting
3500.0 pounds per square inch
Material
Steel seat
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
009560641
NSN
4820009560641

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MLW125496G1
Cage Code:
0AT62
Status:
A
MSDS:
Part Number:
3W28577T3
Cage Code:
88663
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 4820-00-956-0641
What are the manufacturers of nsn 4820009560641?
Does this nsn 4820009560641 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820009560641
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 4820009560641 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820009560641 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820009560641?
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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