4820-01-420-5217

Find complete technical information, availability, and procurement data for: 4820-01-420-5217
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-420-5217

Item Name Code

05487

Assigment Date

10/19/1995 (30 years ago)

A device consisting of two or more valves of the same or different type in a common body or housing. It may have multiple end connections, and the valves function(s) may or may not be dependent of each other. For items consisting of two or more complete valves joined together, see valve assembly.

strategic sealift conversion ships class end item identification, 5 all ends bolt hole quantity, disk flow control device, spring disk loading method, automatic valve operation method

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
Disk Loading Method: spring
Bolt Hole Quantity: 5 all ends
End Item Identification: strategic sealift conversion ships class
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Mounting Position: horizontal or vertical
Valve Size: 18.000 inches
Nominal Outside Diameter: 21.500 inches all ends
Face To Face Distance: 8.750 inches
Bolt Circle Nominal Diameter: 22.750 inches all ends
Flange Face Design: raised straight all ends
Material: copper alloy 955 body
Material: nickel alloy 400 flow control device
Material Document And Classification: astm b148, c95500 assn std single material response body
Material Document And Classification: astm b164, n04400 assn std single material response flow control device
Style Designator: straight thru flanged 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
7098-1179P41912	Check Valve
7098-1179P41912 18.00IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-420-5217?

The FSCG of the NSN 4820-01-420-5217 is 4820

Does NSN 4820-01-420-5217 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 4820-01-420-5217 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-420-5217 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 4820-01-420-5217 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, Oct 19, 1995