4820-01-458-0421

Find complete technical information, availability, and procurement data for: 4820-01-458-0421
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-458-0421

Item Name Code

45484

Assigment Date

08/12/1998 (28 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.

2 bolt hole quantity, globe valve type, 2.375 inches flange width, nimitz class cvn end item identification, oval flange shape

Product Characteristics

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

Bolt Hole Quantity: 2
Flange Width: 2.375 inches
End Item Identification: nimitz class cvn
Flange Shape: oval
Valve Type: globe
Flange Length: 4.125 inches
Valve Size: 6.000 inches
Bolt Hole Nominal Diameter: 0.688 inches
Nominal Center Hole Diameter: 1.500 inches
Material: copper alloy
Material Document And Classification: astm b61 assn std single material response or astm b62 assn std single material response

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
803-1385541-06X-28	Valve Gland Flange

FAQs

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

What is the FSCG of the NSN 4820-01-458-0421?

The FSCG of the NSN 4820-01-458-0421 is 4820

Does the NSN 4820-01-458-0421 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-458-0421 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 4820-01-458-0421 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-458-0421 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 4820-01-458-0421 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Wed, Aug 12, 1998