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Safety Relief Valve NSN 4820-00-379-0083

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 4820-00-379-0083 NSN: 4820-00-379-0083

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Features and Characteristics

Pipe Size Accommodated
1.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
468.0 cubic feet per minute
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
11-1/2 1st end
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
1.250 inches 1st end
Opening Pressure Setting
125.0 pounds per square inch
Material
Copper alloy body
Media For Which Designed
Air single response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
003790083
NSN
4820003790083

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2P500
Cage Code:
0AT62
Status:
A
MSDS:
Part Number:
X1396T6-125
Cage Code:
6R484
Status:
A
MSDS:
Part Number:
1-11-4IN125LBAIR
Cage Code:
01343
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 4820-00-379-0083
What are the manufacturers of nsn 4820003790083?
Does this nsn 4820003790083 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003790083
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 4820003790083 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003790083 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003790083?
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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