4820-01-050-1577

Find complete technical information, availability, and procurement data for: 4820-01-050-1577
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-050-1577

Item Name Code

05488

Assigment Date

11/01/1977 (48 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.

bolted bonnet attachment method, inside spring bonnet type, spring disk loading method, threaded renewable seat ring type, 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: bolted
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 6 all ends
Maximum Operating Temp: 150.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 2.500 inches
Adjustable Pressure Range: +106.0 to 120.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 6.125 inches all ends
Nominal Thickness: 0.562 inches all ends
First Connection Face To Centerline Distance: 5.500 inches
Bolt Hole Nominal Diameter: 0.562 inches all ends
Second Connection Face To Centerline Distance: 5.500 inches
Bolt Circle Nominal Diameter: 5.000 inches all ends
Flange Face Design: plain all ends
Material: bronze body
Material Document And Classification: astm b164-61 assn std single material response flow control device
Material Document And Classification: astm b164-61 assn std single material response stem
Material Document And Classification: qq-c-390,alloy d4/d/ fed spec single material response body
Material Document And Classification: qq-n-288 fed spec single material response seat
Media For Which Designed: water-oil-gas single response
Style Designator: angle flanged ends
Specification/Standard Data: 81349-mil-v-24332 government specification
Nondefinitive Spec/Std Data: b grade and 150 rating

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
2023001241M	Safety Relief Valve
202300124M	Safety Relief Valve
2023002G0106	Safety Relief Valve
D50FF-07 2-1/2IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-050-1577?

The FSCG of the NSN 4820-01-050-1577 is 4820

Does the NSN 4820-01-050-1577 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-050-1577 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 4820-01-050-1577 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-050-1577 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 4820-01-050-1577 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Tue, Nov 1, 1977