4820-01-040-3445

Find complete technical information, availability, and procurement data for: 4820-01-040-3445
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-040-3445

Item Name Code

05487

Assigment Date

05/06/1977 (49 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

2a 2nd end thread class, right-hand 1st end thread direction, spring disk loading method, poppet flow control device, 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: 2a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: plain, optional end (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 2nd end
Connection Type: threaded internal pipe 1st end
Mounting Position: horizontal or vertical
Nominal Thread Size: 0.500 inches 1st end
Nominal Thread Size: 1.000 inches 2nd end
Material: steel corrosion resisting body
Material: steel flow control device
Style Designator: straight thru
Thread Series Designator: npt 1st end
Thread Series Designator: unef 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
82651	Check Valve
82651-11	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-040-3445?

The FSCG of the NSN 4820-01-040-3445 is 4820

Does the NSN 4820-01-040-3445 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-040-3445 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 4820-01-040-3445 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-040-3445 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 4820-01-040-3445 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Fri, May 6, 1977