4820-01-340-5741

Find complete technical information, availability, and procurement data for: 4820-01-340-5741
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-340-5741

Item Name Code

05487

Assigment Date

06/17/1991 (35 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.

plain (pipe) 1st end connection style, disk flow control device, alre; ticonderoga class cg-47; arleigh burke class ddg end item identification, right-hand 2nd end thread direction, 2b 2nd end thread class

Product Characteristics

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

Thread Class: 2b 2nd end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
End Item Identification: alre; ticonderoga class cg-47; arleigh burke class ddg
Connection Style: plain (pipe) 1st end
Connection Style: plain, optional end (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal tube 2nd end
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 5500.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches 1st end
Nominal Thread Size: 0.750 inches 2nd end
Criticality Code Justification: feat
Opening Pressure Setting: 15.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.500 inches 2nd end
Special Features: weapon system essential
Material: steel body
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: straight thru
Thread Series Designator: unf 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
6534C491	Check Valve
6534C491-1	Check Valve
6534C91-1	Check Valve
741-115	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-340-5741?

The FSCG of the NSN 4820-01-340-5741 is 4820

Does the NSN 4820-01-340-5741 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-340-5741 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 4820-01-340-5741 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-340-5741 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 4820-01-340-5741 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Mon, Jun 17, 1991