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Gaseou Pressure Equalizing Valve NSN 4820-01-642-8189

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 4820-01-642-8189 NSN: 4820-01-642-8189

Features and Characteristics

Body Material
Steel
First End Flange Outside Diameter
0.310 inches
Body Style
Straight thru
First End Connection Type
Threaded external pipe
First End Width Across Flats
1.125 inches
Second End Connection Type
Threaded internal pipe
Second End Style Designator
Plain
Second End Width Across Flats
1.125 inches
Face To Face Distance
1.125 inches
Flow Control Device
Poppet
End Connection Quantity
2
Special Features
Inlet port: 0.375, outlet port: 0375, total length: 4.33 inches, male end llength: 0.61 inches, crack pressure: 50 to 400 psi
FSC
4820 Nonpowered Valves
NIIN
016428189
NSN
4820016428189

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2302C-400-SETAT300PSIG
Cage Code:
96948
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 4820-01-642-8189
What are the manufacturers of nsn 4820016428189?
Does this nsn 4820016428189 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820016428189
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 4820016428189 contain any precious metals?
No precious metal content.
Does nsn 4820016428189 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820016428189?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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