4820-00-220-3918

Find complete technical information, availability, and procurement data for: 4820-00-220-3918
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-220-3918

Item Name Code

05487

Assigment Date

02/07/1969 (57 years ago)

3a 1st end thread class, poppet flow control device, right-hand 2nd end thread direction, right-hand 1st end thread direction, 0.125 inches 2nd 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.

Nominal Pipe Size Accommodated: 0.125 inches 2nd end
Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 180.0 fahrenheit 1st response
Maximum Operating Temp: 180.0 fahrenheit 2nd response
Connection Style: flared (tube) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 2nd end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal or vertical
Nominal Thread Size: 0.125 inches 2nd end
Nominal Thread Size: 0.437 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Special Features: 2.0 psi valve opening pressure
Material: steel comp 303 body
Material: steel comp 303 seat
Material: steel comp 304 and rubber butadiene-acrylonitrile class nbr and steel comp 303 flow control device
Material Document And Classification: 66 fed std 1st material response and mil-p-5315 mil spec 2nd material response and 66 fed std 3rd material response flow control device
Material Document And Classification: 66 fed std single material response body
Material Document And Classification: 66 fed std single material response seat
Media For Which Designed: alcohol, ethyl 1st response
Media For Which Designed: water-oil-gas 2nd response
Surface Treatment: passivate
Style Designator: straight thru
Thread Series Designator: npt 2nd end
Thread Series Designator: unf 1st 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
1414631	Check Valve
485-4SS1-2	Check Valve
485-SS1-2	Check Valve
M2303-955010	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-220-3918?

The FSCG of the NSN 4820-00-220-3918 is 4820

Does the NSN 4820-00-220-3918 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-220-3918 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 4820-00-220-3918 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-220-3918 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 4820-00-220-3918 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Feb 7, 1969