4820-00-202-7642

Find complete technical information, availability, and procurement data for: 4820-00-202-7642
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-202-7642

Item Name Code

05487

Assigment Date

01/01/1961 (65 years ago)

150.0 fahrenheit 2nd response maximum operating temp, disk flow control device, 8 all ends bolt hole quantity, spring disk loading method, threaded renewable seat ring type

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
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 8 all ends
Maximum Operating Temp: 150.0 fahrenheit 2nd response
Maximum Operating Temp: 450.0 fahrenheit 1st response
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Mounting Position: horizontal or vertical
Valve Size: 4.000 inches
Maximum Operating Pressure: 125.0 pounds per square inch 1st response
Maximum Operating Pressure: 200.0 pounds per square inch 2nd response
Nominal Outside Diameter: 9.000 inches all ends
Face To Face Distance: 11.500 inches
Nominal Thickness: 0.938 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 flow control device
Material: copper alloy 922 seat
Material: iron cast uns f12102 body
Material Document And Classification: astmfeb000 assn std single material response body
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru flanged ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-266-9497	No Name Available	03/05/1969
4820-00-824-7251	No Name Available	09/28/1973
4820-00-865-4600	No Name Available	02/01/1978
4820-00-878-9793	No Name Available	02/01/1978
4820-00-882-6656	No Name Available	03/05/1969

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
1124000400	Check Valve
289-213L	Check Valve
373-4	Check Valve
F918B4	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-202-7642?

The FSCG of the NSN 4820-00-202-7642 is 4820

Does the NSN 4820-00-202-7642 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302010

Does NSN 4820-00-202-7642 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 4820-00-202-7642 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-202-7642 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 4820-00-202-7642 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961