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Safety Relief Valve NSN 4820-01-309-8109

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 4820-01-309-8109 NSN: 4820-01-309-8109

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Bolt Hole Quantity
4 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.250 inches
Opening Pressure Setting
300.0 pounds per square inch
Outside Diameter
5.000 inches 1st end
Thickness
0.438 inches 1st end
First Connection Face To Centerline Distance
2.250 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
3.688 inches
Bolt Circle Diameter
3.875 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
2.500 inches 2nd end
Material
Steel stem
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013098109
NSN
4820013098109

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
TBB4-FINA110
Cage Code:
75954
Status:
A
MSDS:
Part Number:
TBB4-F1NA110
Cage Code:
75954
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 4820-01-309-8109
What are the manufacturers of nsn 4820013098109?
Does this nsn 4820013098109 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013098109
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 4820013098109 contain any precious metals?
No precious metal content.
Does nsn 4820013098109 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013098109?
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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