4820-01-220-0839

Find complete technical information, availability, and procurement data for: 4820-01-220-0839
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-220-0839

Item Name Code

05488

Assigment Date

11/08/1985 (40 years ago)

automatic valve operation method, spring disk loading method, inside spring bonnet type, union bonnet attachment method, disk flow control device

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
Bonnet Type: inside spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Valve Operation Method: automatic
Connection Type: flange all ends
Adjustable Pressure Range: +459.0 to 557.0 pounds per square inch
Maximum Operating Pressure: 1200.0 pounds per square inch single response
Flange Face Design: raised straight all ends
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Media For Which Designed: air 1st response
Media For Which Designed: steam 2nd response
Media For Which Designed: water, fresh 3rd response
Style Designator: angle flanged ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-226-1543	No Name Available	06/13/2008

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
NMP314	Safety Relief Valve
NMP314RNG459 TO 557PSI-A	Safety Relief Valve
NMP355 RANGE 459 TO 557 1IN	Safety Relief Valve
NMP355-L3120A 1IN 459 T 557 PSI	Safety Relief Valve
S4824-H-31293398RNG459 TO 557	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-220-0839?

The FSCG of the NSN 4820-01-220-0839 is 4820

Does the NSN 4820-01-220-0839 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-220-0839 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 4820-01-220-0839 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-220-0839 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 4820-01-220-0839 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Nov 8, 1985