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Safety Relief Valve NSN 4820-00-116-3911

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 4820-00-116-3911 NSN: 4820-00-116-3911

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Features Provided
Pressure tight outlet side
Maximum Operating Pressure
450.0 pounds per square inch single response
Thread Size
0.562 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
450.0 pounds per square inch
Material
Copper alloy
Media For Which Designed
Refrigerant 12 single response
Style Designator
Angle
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
001163911
NSN
4820001163911

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
526-A-450
Cage Code:
28193
Status:
A
MSDS:
Part Number:
67A81A79
Cage Code:
30003
Status:
A
MSDS:
Part Number:
D20793
Cage Code:
53047
Status:
A
MSDS:
Part Number:
526A
Cage Code:
28193
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 4820-00-116-3911
What are the manufacturers of nsn 4820001163911?
Does this nsn 4820001163911 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001163911
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 4820001163911 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001163911 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001163911?
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
  •   Quality Fast Service
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