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Safety Relief Valve NSN 4820-01-386-1674

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 4820-01-386-1674 NSN: 4820-01-386-1674

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
250.0 degrees fahrenheit single response
End Application
6685-01-287-6114
Connection Style
G46b plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
1.000 inches all ends
Opening Pressure Setting
25.0 pounds per square inch
Material
Steel comp 303 body
Media For Which Designed
Hydrogen 3rd response
Style Designator
Err-090
Thread Series Designator
Npt all ends
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
013861674
NSN
4820013861674

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559T8M28
Cage Code:
91816
Status:
A
MSDS:
Part Number:
D559T-8M-25
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 4820-01-386-1674
What are the manufacturers of nsn 4820013861674?
Does this nsn 4820013861674 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013861674
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 4820013861674 contain any precious metals?
No precious metal content.
Does nsn 4820013861674 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013861674?
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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