4820-01-301-4244

Find complete technical information, availability, and procurement data for: 4820-01-301-4244
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-301-4244

Item Name Code

05487

Assigment Date

05/27/1989 (37 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

8 all ends bolt hole quantity, spring disk loading method, disk flow control device, automatic valve operation method, 450.0 fahrenheit 1st 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
Disk Loading Method: spring
Bolt Hole Quantity: 8 all ends
Maximum Operating Temp: 450.0 fahrenheit 1st response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Mounting Position: horizontal
Valve Size: 4.000 inches
Maximum Operating Pressure: 150.0 pounds per square inch 2nd response
Maximum Operating Pressure: 300.0 pounds per square inch 1st response
Nominal Outside Diameter: 9.000 inches all ends
Face To Face Distance: 11.250 inches
Nominal Thickness: 0.688 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
Special Features: washer used in 4 in. and above; cotter pin used on 2 1/2 in. and above
Material: copper alloy 922 or copper alloy 836 body
Material: copper alloy 922 or copper alloy 836 flow control device
Material: nickel alloy seat
Material Document And Classification: astm b61 assn std single material response or astm b62 assn std single material response body
Material Document And Classification: astm b61 assn std single material response or astm b62 assn std single material response flow control device
Material Document And Classification: qq-s-288 fed spec single material response seat
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
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
B1620E-4IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-301-4244?

The FSCG of the NSN 4820-01-301-4244 is 4820

Does the NSN 4820-01-301-4244 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-301-4244 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 4820-01-301-4244 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-301-4244 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 4820-01-301-4244 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, May 27, 1989