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Safety Relief Valve NSN 4820-01-135-2458

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 4820-01-135-2458 NSN: 4820-01-135-2458

  Stock Availability

NSN 4820011352458 availability
(as of 11/29/2022).

  • NS: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Pressure seal, ring type
Maximum Operating Temp
-40.0 degrees fahrenheit 1st response250.0 degrees fahrenheit 2nd response
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.375 inches 1st end
Opening Pressure Setting
7.0 pounds per square inch
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Media For Which Designed
Hydrogen 5th response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
011352458
NSN
4820011352458

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559A-6M-7
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 4820-01-135-2458
What are the manufacturers of nsn 4820011352458?
Does this nsn 4820011352458 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011352458
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 4820011352458 contain any precious metals?
No precious metal content.
Does nsn 4820011352458 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011352458?
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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