4820-01-258-2698

Find complete technical information, availability, and procurement data for: 4820-01-258-2698
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-258-2698

Item Name Code

05488

Assigment Date

07/01/1987 (39 years ago)

A valve designed to control the flow of a fluid by the rotation of a ported plug or plug sector within a suitable ported seat. The plug requires lubrication for ease of operation or contains a bonded composition seal(s). See also valve, seatless and cock, plug.

weight disk loading method, bolted bonnet attachment method, 6 all ends bolt hole quantity, inside screw bonnet type, disk flow control device

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
Bonnet Type: inside screw
Bonnet Attachment Method: bolted
Disk Loading Method: weight
Bolt Hole Quantity: 6 all ends
Maximum Operating Temp: 425.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 2.500 inches
Opening Pressure Setting: 140.0 pounds per square inch
Nominal Outside Diameter: 6.125 inches all ends
Nominal Thickness: 0.937 inches all ends
First Connection Face To Centerline Distance: 5.500 inches
Bolt Hole Nominal Diameter: 0.687 inches all ends
Second Connection Face To Centerline Distance: 5.500 inches
Bolt Circle Nominal Diameter: 5.000 inches all ends
Flange Face Design: plain all ends
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material Document And Classification: astm b61 assn std single material response body
Material Document And Classification: qq-n-271 fed spec single material response stem
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-n-281 fed spec single material response seat
Media For Which Designed: water-oil-gas single response
Style Designator: angle flanged ends
Furnished Items And Quantity: 1 lever

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
D50559 AND R10AK3K3AE-BM3	Safety Relief Valve
R10AK3K3AE-BM3	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-258-2698?

The FSCG of the NSN 4820-01-258-2698 is 4820

Does the NSN 4820-01-258-2698 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-258-2698 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 4820-01-258-2698 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-258-2698 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 4820-01-258-2698 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Jul 1, 1987