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Safety Relief Valve NSN 4820-01-222-3250

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 4820-01-222-3250 NSN: 4820-01-222-3250

Features and Characteristics

Thread Class
3b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Maximum Operating Pressure
2500.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Opening Pressure Setting
275.0 pounds per square inch
Material
Steel body
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through note: to be used for valve bodies of one section only.
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
012223250
NSN
4820012223250

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5159-4JJ-275
Cage Code:
91816
Status:
A
MSDS:
Part Number:
2695139
Cage Code:
10001
Status:
A
MSDS:
Part Number:
5100-4JJ
Cage Code:
91816
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 4820-01-222-3250
What are the manufacturers of nsn 4820012223250?
Does this nsn 4820012223250 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012223250
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 4820012223250 contain any precious metals?
No precious metal content.
Does nsn 4820012223250 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012223250?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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