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Safety Relief Valve NSN 4820-01-134-3834

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 4820-01-134-3834 NSN: 4820-01-134-3834

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Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
280.0 degrees fahrenheit single response
Connection Style
G42 flared (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Thready Qty Per Inch (tpi)
12 1st end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
1.062 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
125.0 pounds per square inch
Material
Steel comp 303
Material Specification
Aisi 303 assn standard single material response
Media For Which Designed
Air 1st responsealcohol, ethyl 2nd responseammonia, gaseous 3rd responsefuel/oil, hydrocarbon 4th responsehelium 5th response
Style Designator
Err-090
Thread Series Designator
Unj 1st end
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
011343834
NSN
4820011343834

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559T-12D-125
Cage Code:
91816
Status:
A
MSDS:
Part Number:
GV500HW12C125D
Cage Code:
26512
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 4820-01-134-3834
What are the manufacturers of nsn 4820011343834?
Does this nsn 4820011343834 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011343834
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 4820011343834 contain any precious metals?
No precious metal content.
Does nsn 4820011343834 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011343834?
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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