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Safety Relief Valve NSN 4820-00-446-3321

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 4820-00-446-3321 NSN: 4820-00-446-3321

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Features and Characteristics

Pipe Size Accommodated
0.500 inches 2nd end
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
300.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+500.0/+700.0 pounds per square inch
Maximum Operating Pressure
1200.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Material
Stainless steel seat
Media For Which Designed
Water, fresh single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
004463321
NSN
4820004463321

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SC2002PC143T0154
Cage Code:
01343
Status:
A
MSDS:
Part Number:
YMS135S49-53PC143T0154
Cage Code:
53711
Status:
A
MSDS:
Part Number:
N343PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N347PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N355PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N335PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N359PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N500PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N534PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N542PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N508PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
N367PC143T0154
Cage Code:
88663
Status:
A
MSDS:
Part Number:
AM82S49-0153PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AM82S49-0161PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AM82S49-153PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AS11S49-0161PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AS11S49-208PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AS11S49-216PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AT96S49-13PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
AT96S49-5PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
PC461S49-0212PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
PC461S49-220PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
YMS135S49-45PC143T0154
Cage Code:
80064
Status:
A
MSDS:
Part Number:
20M-1 1/2 IN-500PSI
Cage Code:
01343
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 4820-00-446-3321
What are the manufacturers of nsn 4820004463321?
Does this nsn 4820004463321 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004463321
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 4820004463321 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004463321 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004463321?
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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