4820-01-227-7181

Find complete technical information, availability, and procurement data for: 4820-01-227-7181
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-227-7181

Item Name Code

05492

Assigment Date

03/07/1986 (40 years ago)

A self-acting valve designed for controlling, by means of a thermostatic element, the flow of liquids or gases therethrough. The thermostatic element is located in liquid or gas whose temperature is controlled by the heat of the liquid or gas flowing through the valve. See also valve, relief, pressure and temperature.

identical second end relationship with first end, socket w/brazing ring first end style designator, straight thru body style, unthreaded internal pipe first end connection type, 1.500 inches first end nominal pipe size accommodated

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: unthreaded internal pipe
First End Style Designator: socket w/brazing ring
First End Nominal Pipe Size Accommodated: 1.500 inches
Second End Relationship With First End: identical
Flow Control Device: double seated
End Connection Quantity: 2
Two-Way Valve Action: reverse acting
Temp Adjustability: adjustable
Material: copper alloy 922 body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material: plastic polytetrafluoroethylene packing
Material Document And Classification: mil-b-16541 mil spec single material response body
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-n-281 fed spec single material response seat
Material Document And Classification: qq-n-281 fed spec single material response stem

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
40104-802	Temperature Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-01-227-7181?

The FSCG of the NSN 4820-01-227-7181 is 4820

Does the NSN 4820-01-227-7181 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-227-7181 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 4820-01-227-7181 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-227-7181 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 4820-01-227-7181 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Mar 7, 1986