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Safety Relief Valve NSN 4820-01-439-9033

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 4820-01-439-9033 NSN: 4820-01-439-9033

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
400.0 degrees fahrenheit single response
Minimum Operating Temp
-100.0 degrees fahrenheit
End Application
Strategic sealift conversion ships class
Connection Style
G42 flared (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
0.438 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
10.0 pounds per square inch
Material
Steel comp 303 seat
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
Thread Series Designator
Unjf 1st end
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
014399033
NSN
4820014399033

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D520T4D10
Cage Code:
91816
Status:
A
MSDS:
Part Number:
918531
Cage Code:
34228
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 4820-01-439-9033
What are the manufacturers of nsn 4820014399033?
Does this nsn 4820014399033 have a shelf life?
Yes. 60 mo. after cure date.
What is the formal definition of nsn 4820014399033
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 4820014399033 contain any precious metals?
No precious metal content.
Does nsn 4820014399033 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014399033?
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
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