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Safety Relief Valve NSN 4820-00-402-7320

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 4820-00-402-7320 NSN: 4820-00-402-7320

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Packing retaining
Disk Loading Method
Weight
Valve Discharge Flow Rate
65000.0 pounds per hour
Renewable Seat Ring Type
Threaded or welded
Bolt Hole Quantity
9 2nd end
Valve Operation Method
Manual or air
Flange Shape
Round with holes 2nd end
Connection Type
Flange 1st end
Opening Pressure Setting
1375.0 pounds per square inch
Outside Diameter
9.250 inches 2nd end
Thickness
1.063 inches 3rd end
Bolt Hole Diameter
1.188 inches 1st end
Bolt Circle Diameter
7.688 inches 2nd end
Flange Face Design
Plain 2nd end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
4.125 inches 1st end
Material
Steel seat
Style Designator
Angle
Reference Number Differentiating Characteristics
As differentiated by the valve discharge flow rate requirement
FSC
4820 Nonpowered Valves
NIIN
004027320
NSN
4820004027320

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5VKE72
Cage Code:
38056
Status:
A
MSDS:
Part Number:
S5103H3210751
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 4820-00-402-7320
What are the manufacturers of nsn 4820004027320?
Does this nsn 4820004027320 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004027320
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 4820004027320 contain any precious metals?
No precious metal content.
Does nsn 4820004027320 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004027320?
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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