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Gaseou Pressure Equalizing Valve NSN 4820-00-226-5551

Item Description

A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude valve, vacuum breaking.

NSN 4820-00-226-5551 NSN: 4820-00-226-5551

Features and Characteristics

Body Material
Aluminum alloy
Outside Surface Treatment
Anodized
Body Style
Single connection, straight flow
Furnished Items
Gasket
Media For Which Designed
Air
First End Connection Type
Recessed flange
First End Style Designator
Recessed
First End Recess Diameter
0.665 inches
First End Recess Depth
0.045 inches
First End Flange Shape Style
Oval w/ bolt holes
First End Flange Thickness
0.156 inches
First End Flange Length
1.302 inches
First End Flange Width
1.000 inches
First End Flange End Radius
0.500 inches
First End Bolt Hole Quantity
2
First End Bolt Hole Diameter
0.095 inches
First End Bolt Circle Diameter
0.800 inches
Seat Material
Plastic
Flow Control Device
Disk, flat
Flow Control Device Material
Plastic
End Connection Quantity
1
Disk Loading Method
Spring
Valve Venting Design Type
Atmospheric
Valve Relief Design Type
Pressure and vacuum
FSC
4820 Nonpowered Valves
NIIN
002265551
NSN
4820002265551

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
629L20S170
Cage Code:
15939
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481809050
  • NAICS: 332911
  • SITC: 74780
  • Description: Other taps, cocks, valves, etc., nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-226-5551
What are the manufacturers of nsn 4820002265551?
Does this nsn 4820002265551 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002265551
A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. it is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. the center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. it may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. exclude valve, vacuum breaking.
Does nsn 4820002265551 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002265551 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002265551?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
10958
FIIG:
A07100
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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