4820-00-617-8346

Find complete technical information, availability, and procurement data for: 4820-00-617-8346
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-617-8346

Item Name Code

20520

Assigment Date

02/20/1975 (51 years ago)

An adapter having a flange connection on one end designed to connect with another flange connection or a compression type mounting pad. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a flange or flange fitting to boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like.

right-hand all ends thread direction, 3b all ends thread class, gasket seal (boss) all ends connection style, 0.420 inches nominal aperture diameter, poppet flow control device

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand all ends
Aperture Diameter: 0.420 inches nominal
Flow Control Device: poppet
Connection Style: gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Nominal Thread Size: 0.562 inches all ends
Material: aluminum alloy body
Material: steel corrosion resisting flow control device
Surface Treatment: anodize
Style Designator: straight thru
Thread Series Designator: unf all ends

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
1R30613-041R	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-617-8346?

The FSCG of the NSN 4820-00-617-8346 is 4820

Does the NSN 4820-00-617-8346 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-617-8346 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-617-8346 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-617-8346 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 4820-00-617-8346 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Thu, Feb 20, 1975