4820-01-240-8389

Find complete technical information, availability, and procurement data for: 4820-01-240-8389
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-240-8389

Item Name Code

05488

Assigment Date

09/19/1986 (39 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

flange all ends connection type, diaphragm flow control device, automatic valve operation method, 4 all ends bolt hole quantity, round with holes all ends flange shape

Product Characteristics

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

Flow Control Device: diaphragm
Bolt Hole Quantity: 4 all ends
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Maximum Operating Pressure: 150.0 pounds per square inch single response
Opening Pressure Setting: 60.0 pounds per square inch
Nominal Outside Diameter: 3.875 inches 2nd end
Nominal Outside Diameter: 4.250 inches 1st end
Nominal Thickness: 0.500 inches 2nd end
Nominal Thickness: 0.562 inches 1st end
Bolt Hole Nominal Diameter: 0.625 inches all ends
Bolt Circle Nominal Diameter: 2.750 inches 2nd end
Bolt Circle Nominal Diameter: 3.125 inches 1st end
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 1.688 inches 2nd end
Raised Face Nominal Diameter: 2.000 inches 1st end
Material: steel corrosion resisting overall
Style Designator: angle flanged 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
12616F	Safety Relief Valve
12616F3/4X1IN FLGE60PSISET	Safety Relief Valve
2741/S2	Safety Relief Valve
27DA23-120	Safety Relief Valve
72351-2741/S2 3/4X1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-240-8389?

The FSCG of the NSN 4820-01-240-8389 is 4820

Does the NSN 4820-01-240-8389 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-240-8389 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 4820-01-240-8389 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-240-8389 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 4820-01-240-8389 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Sep 19, 1986