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Safety Relief Valve NSN 4820-00-540-3427

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 4820-00-540-3427 NSN: 4820-00-540-3427

Features and Characteristics

Pipe Size Accommodated
0.375 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Thready Qty Per Inch (tpi)
18 1st end
Thread Size
0.562 inches 1st end
Opening Pressure Setting
50.0 pounds per square inch
Material
Aluminum alloy seat
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
005403427
NSN
4820005403427

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2533184-503
Cage Code:
88277
Status:
A
MSDS:
Part Number:
W4420 3-8D
Cage Code:
05477
Status:
A
MSDS:
Part Number:
W4413 3-8E
Cage Code:
05477
Status:
A
MSDS:
Part Number:
W44203-8D
Cage Code:
05477
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 4820-00-540-3427
What are the manufacturers of nsn 4820005403427?
Does this nsn 4820005403427 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820005403427
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 4820005403427 contain any precious metals?
No precious metal content.
Does nsn 4820005403427 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820005403427?
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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