804N

View detailed technical data, stock status, and sourcing information for: 804N
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-324-8521

Item Name Code

05485

Assigment Date

08/23/1990 (35 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.

socket (tube) all ends connection style, inside screw bonnet type, 250.0 fahrenheit single response maximum operating temp, poppet flow control device, threaded bonnet attachment method

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: poppet
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: socket (tube) all ends
Valve Operation Method: manual
Connection Type: unthreaded internal tube all ends
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 0.250 inches all ends
Material: plastic polychlorotrifluoroethylene flow control device
Material: steel comp 316 body
Material: steel comp 316 stem
Style Designator: straight thru

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-324-7865	No Name Available	09/01/2017

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
551-5871394/ALP-V-53,56,60	Globe Valve
804N	Globe Valve
804NGU-04C	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-324-8521?

The FSCG of the NSN 4820-01-324-8521 is 4820

Does the NSN 4820-01-324-8521 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803060

Does NSN 4820-01-324-8521 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 4820-01-324-8521 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-324-8521 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 4820-01-324-8521 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Aug 23, 1990