4820-00-559-1585

Find complete technical information, availability, and procurement data for: 4820-00-559-1585
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-559-1585

Item Name Code

16988

Assigment Date

11/14/1974 (51 years ago)

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external and/or internal recognized national gas outlet threads. It is designed to join a tube fitting to a gas fitting.

manual valve operation method, plug flow control device, right-hand 1st end thread direction, 0.250 inches 1st end nominal pipe size accommodated, plain (pipe) 1st end connection style

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: 0.250 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: plug
Connection Style: plain (pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded external pipe 1st end
Nominal Thread Size: 0.250 inches 1st end
Material: copper alloy body
Style Designator: straight thru
Thread Series Designator: npt 1st end
Reference Number Differentiating Characteristics: free from mercury contamination,used in nuclear propulsion plant

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
476-1-4	Drain Cock
513-471-8258	Drain Cock

FAQs

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

What is the FSCG of the NSN 4820-00-559-1585?

The FSCG of the NSN 4820-00-559-1585 is 4820

Does the NSN 4820-00-559-1585 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-559-1585 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 4820-00-559-1585 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-559-1585 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 4820-00-559-1585 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Thu, Nov 14, 1974