4820-01-223-8651

Find complete technical information, availability, and procurement data for: 4820-01-223-8651
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-223-8651

Item Name Code

05488

Assigment Date

01/08/1986 (40 years ago)

disk flow control device, 3b 1st end thread class, right-hand 1st end thread direction, 3a 2nd end thread class, right-hand 2nd end thread direction

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 2nd end
Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: gasket seal(boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 2nd end
Connection Type: threaded internal boss 1st end
Thread Quantity Per Inch: 18 2nd end
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches 1st end
Nominal Thread Size: 0.562 inches 2nd end
Opening Pressure Setting: 90.0 pounds per square inch
Material: steel comp 303 overall
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Media For Which Designed: helium 3rd response
Media For Which Designed: hydrogen 4th response
Thread Series Designator: unf 1st end
Thread Series Designator: unj 2nd 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
559T6DB90	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-223-8651?

The FSCG of the NSN 4820-01-223-8651 is 4820

Does the NSN 4820-01-223-8651 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-223-8651 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 4820-01-223-8651 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-223-8651 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 4820-01-223-8651 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Jan 8, 1986