4820-01-421-4705

Find complete technical information, availability, and procurement data for: 4820-01-421-4705
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-421-4705

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.

500.0 fahrenheit 2nd response maximum operating temp, 8 all ends bolt hole quantity, 100.0 fahrenheit 1st response maximum operating temp, disk flow control device, 800.0 fahrenheit 3rd response maximum operating temp

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
Bolt Hole Quantity: 8 all ends
Maximum Operating Temp: 100.0 fahrenheit 1st response
Maximum Operating Temp: 500.0 fahrenheit 2nd response
Maximum Operating Temp: 800.0 fahrenheit 3rd response
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
Valve Size: 6.000 inches
Maximum Operating Pressure: 80.0 pounds per square inch 3rd response
Maximum Operating Pressure: 170.0 pounds per square inch 2nd response
Maximum Operating Pressure: 285.0 pounds per square inch 1st response
Nominal Outside Diameter: 11.000 inches all ends
Face To Face Distance: 14.000 inches
Nominal Thickness: 1.000 inches all ends
Bolt Hole Nominal Diameter: 0.875 inches all ends
Bolt Circle Nominal Diameter: 9.500 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 8.500 inches all ends
Material: steel uns j03002 body
Material: steel uns j03002 flow control device
Material: steel uns k91151 seat
Material Document And Classification: astm a182, grade f6a assn std single material response seat
Material Document And Classification: astm a216, grade wcb assn std single material response body
Material Document And Classification: astm a216, grade wcb 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
31F-CB2 6.00IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-421-4705?

The FSCG of the NSN 4820-01-421-4705 is 4820

Does the NSN 4820-01-421-4705 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-421-4705 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 4820-01-421-4705 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-421-4705 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 4820-01-421-4705 was assigned to the Federal Catalog?

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