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Vent-check Valve NSN 4820-01-540-2957

Item Description

A dual purpose marine valve used primarily with shipboard cargo tanks and bulkheads. It acts both as a vent valve, to relieve vacuum and pressure, and a check valve, to prevent cargo contamination. It is equipped with an internal flame screen and/or a protective mesh and may include a hinged cover.

NSN 4820-01-540-2957 NSN: 4820-01-540-2957

Features and Characteristics

Flow Control Device
Ball
End Application
New construction lcs1
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.500 inches
Face To Face Distance
8.250 inches
Flange Face Design
Plain all ends
Part Name Assigned By Controlling Agency
In line vent valve
Special Features
40 mesh flame screen included.
Material
Copper alloy body
Style Designator
Straight through flanged ends
FSC
4820 Nonpowered Valves
NIIN
015402957
NSN
4820015402957

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0242126300
Cage Code:
09032
Status:
A
MSDS:
Part Number:
52-95F/3-430-M20 2.5IN
Cage Code:
09032
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4820-01-540-2957
What are the manufacturers of nsn 4820015402957?
Does this nsn 4820015402957 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015402957
A dual purpose marine valve used primarily with shipboard cargo tanks and bulkheads. it acts both as a vent valve, to relieve vacuum and pressure, and a check valve, to prevent cargo contamination. it is equipped with an internal flame screen and/or a protective mesh and may include a hinged cover.
Does nsn 4820015402957 contain any precious metals?
No precious metal content.
Does nsn 4820015402957 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015402957?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
52995
FIIG:
A530B0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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