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Safety Relief Valve NSN 4820-00-019-0476

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 4820-00-019-0476 NSN: 4820-00-019-0476

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Valve Discharge Flow Rate
110.0 cubic feet per minute
Maximum Operating Temp
406.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Air
Connection Type
Threaded external pipe 1st end
Power Drive Operating Pressure
100.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Material
Steel stem
Material Specification
Qq-c-390, alloyb5/d/ federal specification single material response body
Media For Which Designed
Air single response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
Reference Number Differentiating Characteristics
Cleaning in accordance with mil-p-52211 /ce/
FSC
4820 Nonpowered Valves
NIIN
000190476
NSN
4820000190476

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A21700
Cage Code:
58455
Status:
A
MSDS:
Part Number:
2A 3/4IN 100PSI
Cage Code:
58455
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 4820-00-019-0476
What are the manufacturers of nsn 4820000190476?
Does this nsn 4820000190476 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820000190476
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 4820000190476 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820000190476 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820000190476?
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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