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Safety Relief Valve NSN 4820-01-554-8499

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 4820-01-554-8499 NSN: 4820-01-554-8499

Features and Characteristics

Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Renewable Seat Ring Type
Pressed-in
End Application
New construction cvn77
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Adjustable Pressure Range
+400.0/+1500.0 pounds per square inch
Part Name Assigned By Controlling Agency
Relief valve assembly .313 orifice
Special Features
Viton seals; valve size .50" x 1.25"
Material
Copper alloy 957 body
Media For Which Designed
Oil, hydraulic single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
015548499
NSN
4820015548499

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
PLC-10679-C
Cage Code:
99565
Status:
A
MSDS:
Part Number:
PLC-10679 ASSY PLC-10679-C
Cage Code:
99565
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 4820-01-554-8499
What are the manufacturers of nsn 4820015548499?
Does this nsn 4820015548499 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015548499
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 4820015548499 contain any precious metals?
No precious metal content.
Does nsn 4820015548499 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015548499?
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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