4820-00-287-4089

Find complete technical information, availability, and procurement data for: 4820-00-287-4089
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4089

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

exposed spring bonnet type, spring disk loading method, threaded bonnet attachment method, poppet flow control device, right-hand all ends thread direction

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: poppet
Bonnet Type: exposed spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Valve Discharge Flow Rate: 31.0 cubic feet per minute
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Thread Size: 0.375 inches all ends
Opening Pressure Setting: 50.0 pounds per square inch
Material: copper alloy overall
Media For Which Designed: air 1st response
Media For Which Designed: gas, natural 2nd response
Style Designator: angle
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-355-1609	No Name Available	01/01/1963
4820-00-820-2674	No Name Available	01/01/1962

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
00664-0368	Safety Relief Valve
1603496	Safety Relief Valve
48SIZE3-8 50PSI	Safety Relief Valve
664-368	Safety Relief Valve
70607	Safety Relief Valve
A9052KITAK67	Safety Relief Valve
B2916	Safety Relief Valve
EN25-66	Safety Relief Valve
FIG48-3-8-50LB	Safety Relief Valve
FIG48SIZE3-8-50PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4089?

The FSCG of the NSN 4820-00-287-4089 is 4820

Does the NSN 4820-00-287-4089 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-4089 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 4820-00-287-4089 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-4089 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 4820-00-287-4089 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963