Gaseou Pressure Equalizing Valve NSN 4820-01-491-0556

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: 4820-01-491-0556

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Related NSN

Major End Items End items to which 4820-01-491-0556 is a component of

N/A Apobs Training Aid 6910-01-467-1277

Features and Characteristics

Body Style

Straight thru

Furnished Items

Gasket and manual operating device

Media For Which Designed

Air

First End Connection Type

Threaded external pipe

First End Pipe Size Accommodated

0.750 inches

First End Thread Direction

Right-hand

End Connection Quantity

Valve Venting Design Type

Atmospheric

Valve Relief Design Type

Pressure and vacuum

Absolute Pressure Setting

2.5

End Application

6910-01-467-1277, training aid, apobs

First End Thread Series Designator

Npsm

First End Thread Size

0.750 inches

Part Name Assigned By Controlling Agency

Valve, pressure relief

FSC

4820 Nonpowered Valves

NIIN

014910556

NSN

4820014910556

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

MIL-V-27166

Cage Code:

81349

Status:

MSDS:

Part Number:

TA333-25-15-R

Cage Code:

08992

Status:

MSDS:

Part Number:

87012A5070

Cage Code:

01365

Status:

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 4820-01-491-0556

What are the manufacturers of nsn 4820014910556?

Does this nsn 4820014910556 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014910556
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 4820014910556 contain any precious metals?
No precious metal content.

Does nsn 4820014910556 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014910556?
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:

Cond. Code:

Status:

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Certificate of Conformance
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