4820-01-263-3047

Find complete technical information, availability, and procurement data for: 4820-01-263-3047
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-263-3047

Item Name Code

05488

Assigment Date

09/12/1987 (38 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

plain (tube) 1st end connection style, spring disk loading method, streamlined with one brazing ring (tube) 2nd end connection style, disk flow control device, 833.0 cubic feet per minute valve discharge flow rate

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: disk
Disk Loading Method: spring
Valve Discharge Flow Rate: 833.0 cubic feet per minute
Connection Style: streamlined with one brazing ring (tube) 2nd end
Connection Style: plain (tube) 1st end
Valve Operation Method: automatic
Connection Type: unthreaded external tube 1st end
Connection Type: unthreaded internal tube 2nd end
Adjustable Pressure Range: +1031.0 to 1210.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.375 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.750 inches 2nd end
Material: copper alloy body
Material: steel comp 303 flow control device
Material: steel comp 303 stem
Style Designator: angle

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
8503972-1-2-3-4	Safety Relief Valve
DA-70A-NMP1188-SET1140-3/8X3/4IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-263-3047?

The FSCG of the NSN 4820-01-263-3047 is 4820

Does the NSN 4820-01-263-3047 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-263-3047 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 4820-01-263-3047 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-263-3047 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 4820-01-263-3047 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Sep 12, 1987