4820-01-031-3239

Find complete technical information, availability, and procurement data for: 4820-01-031-3239
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-031-3239

Item Name Code

05487

Assigment Date

11/22/1976 (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.

right-hand 1st end thread direction, 3a 2nd end thread class, right-hand 2nd end thread direction, external seat for gasket seal (boss) 2nd end connection style, 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: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Connection Type: threaded external boss 2nd end
Thread Quantity Per Inch: 18 1st end
Nominal Thread Size: 0.750 inches 2nd end
Nominal Thread Size: 0.844 inches 1st end
Style Designator: straight thru
Thread Series Designator: unjs 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
4C2280-2	Check Valve
A51H9069	Check Valve
A51H9069-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-031-3239?

The FSCG of the NSN 4820-01-031-3239 is 4820

Does NSN 4820-01-031-3239 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 4820-01-031-3239 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-031-3239 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 4820-01-031-3239 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Mon, Nov 22, 1976