4820-00-914-4683

Find complete technical information, availability, and procurement data for: 4820-00-914-4683
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-914-4683

Item Name Code

05488

Assigment Date

03/07/1966 (60 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.

right-hand 1st end thread direction, poppet flow control device, 2a 1st end thread class, spring disk loading method, external seat for gasket seal (boss) 1st end connection style

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 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Features Provided: valve stem lock shield
Thread Quantity Per Inch: 14 1st end
Nominal Thread Size: 1.000 inches 1st end
Opening Pressure Setting: 3400.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.750 inches 1st end
Material: steel overall
Style Designator: straight thru
Thread Series Designator: uns 1st 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
1AXY239-2-34	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-914-4683?

The FSCG of the NSN 4820-00-914-4683 is 4820

Does the NSN 4820-00-914-4683 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-914-4683 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 4820-00-914-4683 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-914-4683 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 4820-00-914-4683 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Mar 7, 1966