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Safety Relief Valve NSN 4820-00-289-1795

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 4820-00-289-1795 NSN: 4820-00-289-1795

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
6 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Features Provided
Valve stem lock shield and pressure tight outlet side
Adjustable Pressure Range
+5.0/+25.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
5.562 inches all ends
Thickness
0.562 inches all ends
Bolt Hole Diameter
0.562 inches all ends
Bolt Circle Diameter
4.438 inches all ends
Flange Face Design
Plain all ends
Material
Nickel alloy stem
Media For Which Designed
Steam single response
Style Designator
Straight thru
Furnished Items And Quantity
1 sight gage
FSC
4820 Nonpowered Valves
NIIN
002891795
NSN
4820002891795

Manufacturer Part Numbers

Part numbers registered to this national stock number.

No part numbers found for this NSN.

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 4820-00-289-1795
What are the manufacturers of nsn 4820002891795?
Does this nsn 4820002891795 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002891795
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 4820002891795 contain any precious metals?
No precious metal content.
Does nsn 4820002891795 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002891795?
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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