4820-01-020-2501

Find complete technical information, availability, and procurement data for: 4820-01-020-2501
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-020-2501

Item Name Code

05488

Assigment Date

04/27/1976 (50 years ago)

A valve having two or more ports with valve stem or pilot needle in a normally open or closed position. It is specifically designed to stop or start or change the flow of fluid by means of the magnetic action of an electric coil on a moveable core or plunger. The valve may be equipped with a manual opening or closing device. For items with three or more ports that utilize a reciprocating slide with recess areas which mate with ports in an integral or replaceable ported sleeve, see valve (1), linear, directional control. It may be inline or cartridge (manifold) design. Excludes:valve (1), butterfly.

threaded bonnet attachment method, right-hand 1st end thread direction, 0.125 inches 1st end nominal pipe size accommodated, poppet flow control device, inside 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.

Nominal Pipe Size Accommodated: 0.125 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
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 all ends
Opening Pressure Setting: 50.0 pounds per square inch
Special Features: popoff style
Material: aluminum alloy seat
Material: aluminum alloy body
Media For Which Designed: air single response
Surface Treatment: anodize
Style Designator: straight thru w/baffle
Thread Series Designator: npt all ends

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
247ASC2368-001	Safety Relief Valve
D559A1M50	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-020-2501?

The FSCG of the NSN 4820-01-020-2501 is 4820

Does the NSN 4820-01-020-2501 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-020-2501 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 4820-01-020-2501 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-020-2501 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 4820-01-020-2501 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Tue, Apr 27, 1976