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Safety Relief Valve NSN 4820-00-494-0755

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 4820-00-494-0755 NSN: 4820-00-494-0755

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Features and Characteristics

Pipe Size Accommodated
0.125 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Valve Discharge Flow Rate
100.0 liters per minute
Maximum Operating Temp
260.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
27 2nd end
Maximum Operating Pressure
140.0 pounds per square inch single response
Thread Size
0.125 inches 2nd end
Criticality Code Justification
Cqgm
Material
Aluminum alloy
Material Specification
Mil-v-9050 military specification single material response
Media For Which Designed
Oxygen, gaseous 1st response
Style Designator
Angle
Test Data Document
81349-mil-v-9050 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Anpt 2nd end
Nondefinitive Specification/std Data
5 type
FSC
4820 Nonpowered Valves
NIIN
004940755
NSN
4820004940755

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
M9050-5
Cage Code:
96906
Status:
A
MSDS:
Part Number:
MIL-V-9050
Cage Code:
81349
Status:
A
MSDS:
Part Number:
21247-12
Cage Code:
04577
Status:
A
MSDS:
Part Number:
20C-0050-5
Cage Code:
19062
Status:
A
MSDS:
Part Number:
20C0005-50
Cage Code:
19062
Status:
A
MSDS:
Part Number:
10525-3
Cage Code:
31441
Status:
A
MSDS:
Part Number:
8661132
Cage Code:
64640
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 4820-00-494-0755
What are the manufacturers of nsn 4820004940755?
Does this nsn 4820004940755 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004940755
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 4820004940755 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004940755 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004940755?
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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