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Safety Relief Valve NSN 4820-01-218-3302

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 4820-01-218-3302 NSN: 4820-01-218-3302

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
280.0 degrees fahrenheit single response
Minimum Operating Temp
-40.0 degrees fahrenheit
Connection Style
G46a plain (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Opening Pressure Setting
52.0 pounds per square inch
Material
Aluminum alloy 2024 body
Media For Which Designed
Helium 5th response
Style Designator
Err-090
Thread Series Designator
Unjf all ends
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
012183302
NSN
4820012183302

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
71010469001 THRU 9011
Cage Code:
89944
Status:
A
MSDS:
Part Number:
D559A-4D-52
Cage Code:
91816
Status:
A
MSDS:
Part Number:
71010469006
Cage Code:
89944
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 4820-01-218-3302
What are the manufacturers of nsn 4820012183302?
Does this nsn 4820012183302 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012183302
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 4820012183302 contain any precious metals?
No precious metal content.
Does nsn 4820012183302 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012183302?
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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