Fluid Pressure Regulating Valve NSN 4820-00-171-9821

Item Description

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

NSN: 4820-00-171-9821

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Features and Characteristics

Body Material

Brass

Outside Surface Treatment

Any acceptable

Body Style

Straight thru

Stem Material

Brass

Furnished Items

Automatic relief valve and cylinder gage and delivery gage and indicator

Media For Which Designed

Hydrogen

First End Connection Type

Threaded internal gas cylinder

First End Style Designator

Swivel nut, gas

First End Thread Size And Series/type Designator

0.830-14 ngo

First End Thread Direction

Left-hand

Second End Relationship With First End

Not identical

Second End Connection Type

Threaded external tube

Second End Style Designator

Flareless

Second End Outside Diameter Tube Accommodated

0.562 inches

Second End Thread Size And Series/type Designator

9/16-18 unf

Second End Thread Class

Second End Thread Direction

Left-hand

Seat Material

Brass

Second End Seat Radius

Any acceptable

Packing Material

Any acceptable

Flow Control Device

Diaphragm

Flow Control Device Material

Rubber, chloroprene

End Connection Quantity

First End Thread Pitch Diameters

+0.7750 to 0.7786 inches

Regulation Type

Manual single stage

Manual Control Method

Lever

Valve Loading Method

Weight

Maximum Inlet Pressure Rating

1600.0 pounds per square inch

Outlet Pressure Accuracy Rating

Not rated

Filter

Not included

Unable To Decode

Unable to decode and unable to decode

Unable To Decode

Unable to decode and unable to decode and unable to decode and unable to decode

Nondefinitive Specification/std Data

1 type and h1 class

Departure From Cited Designator

As modified by the dial range

FSC

4820 Nonpowered Valves

NIIN

001719821

NSN

4820001719821

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

MILR19180

Cage Code:

81349

Status:

MSDS:

Part Number:

0781-6023

Cage Code:

63026

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481809015
NAICS: 332911
SITC: 74780
Description: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-171-9821

What are the manufacturers of nsn 4820001719821?

Military Specifications (81349)
Victor Equipment Co (63026)

Does this nsn 4820001719821 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820001719821
A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. it is designed for use with compressed gas(es) and various liquids and may include gauges. it may be inline or cartridge (manifold) design. excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

Does nsn 4820001719821 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820001719821 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820001719821?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

27565

FIIG:

A21100

App. Key:

Cond. Code:

Status:

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