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Safety Relief Valve NSN 4820-00-148-8665

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 4820-00-148-8665 NSN: 4820-00-148-8665

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Minimum Operating Temp
-65.0 degrees fahrenheit
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Thread Size
0.250 inches 1st end
Opening Pressure Setting
20.0 pounds per square inch
Material
Steel
Media For Which Designed
Helium 2nd response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
001488665
NSN
4820001488665

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2391244-6-4
Cage Code:
99221
Status:
A
MSDS:
Part Number:
2820185
Cage Code:
23892
Status:
A
MSDS:
Part Number:
1944-001
Cage Code:
14923
Status:
A
MSDS:
Part Number:
1944-1-000
Cage Code:
14923
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 4820-00-148-8665
What are the manufacturers of nsn 4820001488665?
Does this nsn 4820001488665 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001488665
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 4820001488665 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001488665 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001488665?
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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