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Safety Relief Valve NSN 4820-01-281-9319

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 4820-01-281-9319 NSN: 4820-01-281-9319

Features and Characteristics

Pipe Size Accommodated
0.500 inches 2nd end
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Bolt Hole Quantity
4 1st end
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Unthreaded internal pipe 2nd end
Adjustable Pressure Range
+18.0/+22.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Outside Diameter
3.500 inches 1st end
Thickness
0.312 inches 1st end
Bolt Hole Diameter
0.625 inches 1st end
Bolt Circle Diameter
2.375 inches 1st end
Flange Face Design
Plain 1st end
Material
Stainless steel stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012819319
NSN
4820012819319

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R10AD2D106 AND D50915
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D50915-06-BM1
Cage Code:
34889
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 4820-01-281-9319
What are the manufacturers of nsn 4820012819319?
Does this nsn 4820012819319 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012819319
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 4820012819319 contain any precious metals?
No precious metal content.
Does nsn 4820012819319 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012819319?
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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