4820-01-197-2021

Find complete technical information, availability, and procurement data for: 4820-01-197-2021
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-197-2021

Item Name Code

05492

Assigment Date

12/19/1984 (41 years ago)

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.

gasket seal first end style designator, right-hand first end thread direction, identical second end relationship with first end, threaded internal pipe first end connection type, straight thru body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: straight thru
First End Connection Type: threaded internal pipe
First End Style Designator: gasket seal
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Flow Control Device: bellows
End Connection Quantity: 2
Capillary Tube Length: 120.000 inches nominal
Bulb Length: 4.000 inches nominal
Temp Adjustability: adjustable
Thermostatic Element: liquid immersion type
Material: copper alloy body
Material: copper alloy bulb
Thread Size And Series/Type Designator: 0.500-20 unf first end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
BPN-1 W/ELMT 137-14-00-20	Temperature Regulating Valve
BPN-2W/137-14-00-20/68196	Temperature Regulating Valve
Y205664906+N137140020+N68196	Temperature Regulating Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-197-2021?

The FSCG of the NSN 4820-01-197-2021 is 4820

Does the NSN 4820-01-197-2021 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-197-2021 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-01-197-2021 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-197-2021 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-01-197-2021 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Wed, Dec 19, 1984