4820-01-421-4704

Find complete technical information, availability, and procurement data for: 4820-01-421-4704
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-421-4704

Item Name Code

05487

Assigment Date

11/08/1995 (30 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

strategic sealift conversion ships class end item identification, automatic valve operation method, spring disk loading method, 8 all ends bolt hole quantity, round with holes all ends flange shape

Product Characteristics

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

Disk Loading Method: spring
Bolt Hole Quantity: 8 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: vertical
Valve Size: 4.000 inches
Maximum Operating Pressure: 285.0 pounds per square inch single response
Nominal Outside Diameter: 9.000 inches all ends
Face To Face Distance: 6.880 inches
Nominal Thickness: 0.687 inches all ends
Bolt Hole Nominal Diameter: 0.750 inches all ends
Bolt Circle Nominal Diameter: 7.500 inches all ends
Flange Face Design: plain all ends
Material: copper alloy 922 body
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
CD0028 4.00 IN	Check Valve
G15BAPP-72 4.00 INCH	Check Valve
G15XPP-72 4.00IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-421-4704?

The FSCG of the NSN 4820-01-421-4704 is 4820

Does the NSN 4820-01-421-4704 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-421-4704 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 4820-01-421-4704 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-421-4704 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 4820-01-421-4704 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Wed, Nov 8, 1995