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Safety Relief Valve NSN 4820-00-418-2749

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 4820-00-418-2749 NSN: 4820-00-418-2749

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Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Thread Size
0.250 inches 1st end
Opening Pressure Setting
1000.0 pounds per square inch
Material
Copper alloy body
Style Designator
Straight through note: to be used for valve bodies of one section only.
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
004182749
NSN
4820004182749

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5159B2M1000
Cage Code:
91816
Status:
A
MSDS:
Part Number:
67B57639-2
Cage Code:
13669
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 4820-00-418-2749
What are the manufacturers of nsn 4820004182749?
Does this nsn 4820004182749 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004182749
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 4820004182749 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004182749 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004182749?
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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