3A11621

View detailed technical data, stock status, and sourcing information for: 3A11621
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-331-0536

Item Name Code

05488

Assigment Date

12/13/1990 (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.

link-belt control valve 28a3316 end item identification, pressure seal, ring type bonnet attachment method, pressed-in renewable seat ring type, spring disk loading method, exposed spring bonnet type

Product Characteristics

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

Bonnet Type: exposed spring
Bonnet Attachment Method: pressure seal, ring type
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
End Item Identification: link-belt control valve 28a3316
Valve Operation Method: automatic
Furnished Items And Quantity: 1 gasket

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
12759001	Safety Relief Valve
3A11621	Safety Relief Valve
K-2029-A	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-331-0536?

The FSCG of the NSN 4820-01-331-0536 is 4820

Does the NSN 4820-01-331-0536 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-331-0536 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 4820-01-331-0536 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-331-0536 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 4820-01-331-0536 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Dec 13, 1990