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Safety Relief Valve NSN 4820-00-237-5791

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 4820-00-237-5791 NSN: 4820-00-237-5791

Features and Characteristics

Pipe Size Accommodated
1.000 inches 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Hydraulic
Connection Type
Unthreaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+5.0/+1500.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Opening Pressure Setting
185.0 pounds per square inch
Material
Nickel alloy 400 stem
Media For Which Designed
Water, fresh single response
Style Designator
Angle
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
FSC
4820 Nonpowered Valves
NIIN
002375791
NSN
4820002375791

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
E8720PM41M
Cage Code:
01343
Status:
A
MSDS:
Part Number:
8720M0D
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 4820-00-237-5791
What are the manufacturers of nsn 4820002375791?
Does this nsn 4820002375791 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002375791
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 4820002375791 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002375791 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002375791?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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