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Safety Relief Valve NSN 4820-00-168-1906

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 4820-00-168-1906 NSN: 4820-00-168-1906

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
0.125 inches all ends
Opening Pressure Setting
315.0 pounds per square inch
Material
Steel comp 303 flow control device
Style Designator
Straight thru
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
001681906
NSN
4820001681906

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3460-150-300
Cage Code:
13859
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 4820-00-168-1906
What are the manufacturers of nsn 4820001681906?
Does this nsn 4820001681906 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001681906
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 4820001681906 contain any precious metals?
No precious metal content.
Does nsn 4820001681906 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001681906?
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
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