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Safety Relief Valve NSN 4820-01-188-1779

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 4820-01-188-1779 NSN: 4820-01-188-1779

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Features and Characteristics

Thread Class
3b all ends
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
250.0 degrees fahrenheit 2nd response
Connection Style
G4 gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Adjustable Pressure Range
+3000.0/+3600.0 pounds per square inch
Thread Size
0.438 inches 1st end
Outside Diameter Tube Accommodated
4.000 inches 1st end
Material
Aluminum alloy body
Style Designator
Err-090
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
011881779
NSN
4820011881779

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6532C414-1
Cage Code:
80020
Status:
A
MSDS:
Part Number:
665-13-4D2
Cage Code:
09990
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 4820-01-188-1779
What are the manufacturers of nsn 4820011881779?
Does this nsn 4820011881779 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011881779
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 4820011881779 contain any precious metals?
No precious metal content.
Does nsn 4820011881779 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011881779?
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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