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Safety Relief Valve NSN 4820-01-441-9251

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 4820-01-441-9251 NSN: 4820-01-441-9251

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Features and Characteristics

Flow Control Device
Disk
Valve Discharge Flow Rate
343.0 gallons per minute
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
300.0 degrees fahrenheit single response
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Opening Pressure Setting
60.0 pounds per square inch
Outside Diameter
7.500 inches all ends
Thickness
0.625 inches all ends
First Connection Face To Centerline Distance
4.625 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
4.625 inches
Bolt Circle Diameter
6.000 inches all ends
Flange Face Design
Plain all ends
Special Features
Incl pressure tight cap 1
Material
Copper alloy body
Media For Which Designed
Liquid single response
Style Designator
Err-090
Furnished Items And Quantity
1 lever
FSC
4820 Nonpowered Valves
NIIN
014419251
NSN
4820014419251

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0020-K03-MG0060
Cage Code:
1X5W8
Status:
A
MSDS:
Part Number:
0020-K03-MC0060
Cage Code:
01343
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 4820-01-441-9251
What are the manufacturers of nsn 4820014419251?
Does this nsn 4820014419251 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014419251
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 4820014419251 contain any precious metals?
No precious metal content.
Does nsn 4820014419251 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014419251?
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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