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Safety Relief Valve NSN 4820-00-287-3148

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 4820-00-287-3148 NSN: 4820-00-287-3148

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Features and Characteristics

Pipe Size Accommodated
2.500 inches 1st end
Thread Direction
Right-hand all ends
Flow Control Device
Plug
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Connection Style
Plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Features Provided
Valve stem lock shield and bonnet packing and pressure tight outlet side
Thready Qty Per Inch (tpi)
8 all ends
Thread Size
2.500 inches all ends
Opening Pressure Setting
50.0 pounds per square inch
Special Features
W/lock type cap over adjusting screw
Material
Steel flow control device
Style Designator
Angle
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
002873148
NSN
4820002873148

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
WD151
Cage Code:
33947
Status:
A
MSDS:
Part Number:
174
Cage Code:
41592
Status:
A
MSDS:
Part Number:
174SIZE2 1-2
Cage Code:
41592
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 4820-00-287-3148
What are the manufacturers of nsn 4820002873148?
Does this nsn 4820002873148 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002873148
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 4820002873148 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002873148 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002873148?
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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