4820-01-123-2901

Find complete technical information, availability, and procurement data for: 4820-01-123-2901
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-123-2901

Item Name Code

05488

Assigment Date

12/10/1981 (44 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

inside spring bonnet type, poppet flow control device, integral bonnet attachment method, right-hand 1st end thread direction, spring disk loading method

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 1st end
Flow Control Device: poppet
Bonnet Type: inside spring
Bonnet Attachment Method: integral
Disk Loading Method: spring
Valve Discharge Flow Rate: 5.0 gallons per minute
Maximum Operating Temp: 450.0 fahrenheit single response
Minimum Operating Temp: -65.0 fahrenheit
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches 1st end
Opening Pressure Setting: 130.0 pounds per square inch
Material: aluminum alloy 2024 overall
Material Document And Classification: qq-a-225/6,alloy 2024,t351 fed spec single material response overall
Media For Which Designed: air 1st response
Media For Which Designed: oil, chlorinated transformer 2nd response
Media For Which Designed: oxygen, gaseous 3rd response
Surface Treatment: anodize and chromate
Style Designator: straight thru
Thread Series Designator: npt 1st end
Furnished Items And Quantity: 1 deflector cap

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
D524A-1M-130	Safety Relief Valve
D532A-1M-130	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-123-2901?

The FSCG of the NSN 4820-01-123-2901 is 4820

Does the NSN 4820-01-123-2901 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-123-2901 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 4820-01-123-2901 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-123-2901 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 4820-01-123-2901 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Dec 10, 1981