4820-00-393-4899

Find complete technical information, availability, and procurement data for: 4820-00-393-4899
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-393-4899

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

2a 1st end thread class, right-hand 1st end thread direction, external seat for gasket seal (boss) 1st end connection style, poppet flow control device, spring disk loading method

Product Characteristics

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

Thread Class: 2a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Nominal Thread Size: 0.437 inches 1st end
Material: steel overall
Style Designator: angle
Thread Series Designator: unf 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4130-00-316-2724	No Name Available	01/01/1963

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
5F20-512	Safety Relief Valve
5F20A792	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-393-4899?

The FSCG of the NSN 4820-00-393-4899 is 4820

Does the NSN 4820-00-393-4899 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-393-4899 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 4820-00-393-4899 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-393-4899 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 4820-00-393-4899 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963