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Safety Relief Valve NSN 4820-00-287-3211

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 4820-00-287-3211 NSN: 4820-00-287-3211

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Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
350.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Adjustable Pressure Range
+136.0/+169.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
0.750 inches all ends
Special Features
W/lifting lever
Material
Nickel alloy seat
Media For Which Designed
Air single response
Style Designator
Angle
Thread Series Designator
Npt all ends
Nondefinitive Specification/std Data
A1 type and c class
FSC
4820 Nonpowered Valves
NIIN
002873211
NSN
4820002873211

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MILV20065
Cage Code:
81349
Status:
A
MSDS:
Part Number:
TYA1CLC3-4-300-136T0169MTXFT
Cage Code:
03950
Status:
A
MSDS:
Part Number:
R6084JVITEM23
Cage Code:
38056
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 4820-00-287-3211
What are the manufacturers of nsn 4820002873211?
Does this nsn 4820002873211 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002873211
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 4820002873211 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002873211 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002873211?
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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