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Safety Relief Valve NSN 4820-00-990-2412

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 4820-00-990-2412 NSN: 4820-00-990-2412

Features and Characteristics

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Features Provided
Valve stem lock shield
Adjustable Pressure Range
+57.0/+63.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Material
Aluminum alloy
Media For Which Designed
Hydrogen 3rd response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
009902412
NSN
4820009902412

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559A2M60
Cage Code:
91816
Status:
A
MSDS:
Part Number:
773171
Cage Code:
08092
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 4820-00-990-2412
What are the manufacturers of nsn 4820009902412?
Does this nsn 4820009902412 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820009902412
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 4820009902412 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820009902412 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820009902412?
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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