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Safety Relief Valve NSN 4820-00-273-1025

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 4820-00-273-1025 NSN: 4820-00-273-1025

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Features and Characteristics

Thread Direction
Right-hand 2nd end
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Bolt Hole Quantity
3 1st end
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Threaded internal pipe 2nd end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+0.0/+12.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Outside Diameter
3.562 inches 1st end
Bolt Hole Diameter
0.562 inches 1st end
Bolt Circle Diameter
2.437 inches 1st end
Flange Face Design
Plain 1st end
Material
Stainless steel stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Angle
Thread Series Designator
Npt 2nd end
FSC
4820 Nonpowered Valves
NIIN
002731025
NSN
4820002731025

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
G32993
Cage Code:
15187
Status:
A
MSDS:
Part Number:
G10235PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
G10236PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
G7563PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
G7564PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
G8648PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
G8649PC1
Cage Code:
16712
Status:
A
MSDS:
Part Number:
DD445S4700-20PC1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
DD445S4700-21PC1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
DD692S4700-20PC1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
DD692S4700-19PC1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
BB57S47-029PC1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
BB57S47-030PC1
Cage Code:
80064
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 4820-00-273-1025
What are the manufacturers of nsn 4820002731025?
Does this nsn 4820002731025 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002731025
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 4820002731025 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002731025 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002731025?
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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