4820-00-419-5838

Find complete technical information, availability, and procurement data for: 4820-00-419-5838
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-419-5838

Item Name Code

05488

Assigment Date

12/09/1970 (55 years ago)

spring disk loading method, right-hand 1st end thread direction, 1.5 cubic feet per minute valve discharge flow rate, poppet flow control device, 3a 1st end thread class

Product Characteristics

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

Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 1.5 cubic feet per minute
Maximum Operating Temp: -100.0 fahrenheit 1st response400.0 fahrenheit 2nd response
Connection Style: plain (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 1st end
Opening Pressure Setting: 65.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Special Features: furnished w/defector cap
Material: aluminum alloy 2024 body
Material: aluminum alloy 2024 flow control device
Material: aluminum alloy 2024 seat
Material Document And Classification: qq-a-250/4,alloy 2024 fed spec single material response body
Material Document And Classification: qq-a-250/4,alloy 2024 fed spec single material response flow control device
Material Document And Classification: qq-a-250/4,alloy 2024 fed spec single material response seat
Media For Which Designed: air 1st response
Media For Which Designed: carbon dioxide 2nd response
Media For Which Designed: helium 3rd response
Media For Which Designed: hydrogen 4th response
Media For Which Designed: nitrogen, gaseous 5th response
Style Designator: straight thru w/baffle
Thread Series Designator: unjf 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
C225-7	Safety Relief Valve
D524A4D65	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-419-5838?

The FSCG of the NSN 4820-00-419-5838 is 4820

Does the NSN 4820-00-419-5838 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-419-5838 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 4820-00-419-5838 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-419-5838 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 4820-00-419-5838 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Dec 9, 1970