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Safety Relief Valve NSN 4820-00-202-5522

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 4820-00-202-5522 NSN: 4820-00-202-5522

Features and Characteristics

Pipe Size Accommodated
1.000 inches 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
387.0 pounds per hour
Connection Style
G9 plain, optional en (pipe) 1st end
Valve Operation Method
Automatic or manual
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thread Size
1.000 inches 2nd end
Opening Pressure Setting
40.0 pounds per square inch
Material
Steel stem
Material Specification
Qq-c-390, alloyb5/d/ federal specification single material response bodyqq-c-390, alloyb5/d/ federal specification single material response flow control deviceqq-c-390, alloyb5/d/ federal specification single material response seat
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
002025522
NSN
4820002025522

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SER 55-R0 W/1 IN
Cage Code:
17950
Status:
A
MSDS:
Part Number:
GV500UN1
Cage Code:
26512
Status:
A
MSDS:
Part Number:
TE-1
Cage Code:
14915
Status:
A
MSDS:
Part Number:
250E
Cage Code:
14195
Status:
A
MSDS:
Part Number:
FIG2501
Cage Code:
14959
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 4820-00-202-5522
What are the manufacturers of nsn 4820002025522?
Does this nsn 4820002025522 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002025522
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 4820002025522 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002025522 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002025522?
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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