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Safety Relief Valve NSN 4820-01-225-6854

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 4820-01-225-6854 NSN: 4820-01-225-6854

Features and Characteristics

Pipe Size Accommodated
2.000 inches 1st end
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Streamlined with one brazing ring all ends
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+60.0 to 74.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Material
Stainless steel stem
Material Specification
Qq-n-281 federal specification single material response seat
Media For Which Designed
Water-oil-gas single response
Style Designator
C1 angle
Furnished Items And Quantity
1 lever
FSC
4820 Nonpowered Valves
NIIN
012256854
NSN
4820012256854

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BAMAA05MGH
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
R10AH1J1AP AND D50099
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D50UU-05 1-1/2 X 2
Cage Code:
65079
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 4820-01-225-6854
What are the manufacturers of nsn 4820012256854?
Does this nsn 4820012256854 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012256854
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 4820012256854 contain any precious metals?
No precious metal content.
Does nsn 4820012256854 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012256854?
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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  •   Quality Inspected Parts
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