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Vent-check Valve NSN 4820-01-358-8940

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 4820-01-358-8940 NSN: 4820-01-358-8940

Features and Characteristics

Flow Control Device
Ball
Bolt Hole Quantity
4 1st end
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Flange 1st end
Mounting Position
Vertical
Outside Diameter
6.000 inches all ends
Thickness
0.500 inches 1st end
Bolt Hole Diameter
0.625 inches 1st end
Bolt Circle Diameter
4.750 inches 1st end
Flange Face Design
Plain 1st end
Special Features
Without cover
Material
Copper alloy body
Style Designator
Straight thru
FSC
4820 Nonpowered Valves
NIIN
013588940
NSN
4820013588940

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
52-20F 2 INCH FLG BRZ
Cage Code:
09032
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4820-01-358-8940
What are the manufacturers of nsn 4820013588940?
Does this nsn 4820013588940 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013588940
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 4820013588940 contain any precious metals?
No precious metal content.
Does nsn 4820013588940 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013588940?
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
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